{octets} is not an allowed representation of the character {char} — character reference {char:hexref} should be used instead.
fallback-unassigned-error;;No character is assigned to octet sequence {octets}.
illegal-octets-error;;Octet sequence {octets} is illegal.
invalid-state-error;;The input stream is broken.
unassigned-code-point-error;;No character is assigned to octet sequence {octets}.
charset:not supported;;Character encoding {value} is not supported and the explicit character encoding specification is ignored. The result of the conformance checking might be wrong.
disallowed character encoding;;Character encoding {text} is not allowed for HTML document.
bad character encoding;;Character encoding {text} should not be used for HTML document.
non-utf-8 character encoding;;Use of UTF-8 is encouraged (this document is encoded in {text}).
character encoding unchecked;;Conformance for character encoding requirements cannot be checked, since the input is not a byte stream.
no character encoding declaration;;There is no character encoding declaration.
non ascii superset;;No character encoding metadata is found in lower‐level protocol nor is there BOM, while character encoding {text} is not a superset of ASCII.
sniffing:chardet;;Character encoding of this document is sniffed as {text} (Sniffed because no explicit specification for the character encoding of this document is found in the transfer procotol headers).
sniffing:default;;Character encoding of this document is defaulted to {text} because no explicit specification for the character encoding of this document is found in the transfer procotol headers.
chardecode:fallback;;Results might be wrong, since the conformance checker cannot find an appropriate decoder for the character encoding used for the document.
chardecode:no error;;Conformance error checking for the character encoding {text} is not supported.
charset label:matching;;Sniffed character encoding {text} is same as the character encoding specified in the character encoding declaration. This is not an error.
charset label detected;;While parsing the document as {text}, a character encoding declaration specifying a different character encoding is found. The document is reparsed.
NULL;;The NULL character is not allowed.
control char;;Code point {text} is not allowed.
nonchar;;Noncharacter {text} is found in the input stream.
non unicode;;Character {text} is not a Unicode character.
unicode deprecated;;Use of character {text} is deprecated.
unicode discouraged;;Use of character {text} is discouraged.
unicode not preferred;;Code point {text} is not the preferred representation of that character.
unicode should;;Character {text} should not be used in many cases.
bad attribute name;;Attribute name cannot contain characters ", ', and =.
bad attribute value;;Attribute value must be quoted by " or ' if it contains a ", ', or = character.
bare ero;;The & character must be escaped as &.
bare etago;;A </ string is not followed by a tag name.
bare stago;;A < character is not followed by tag name or by a ! character.
bare nero;;The decimal representation of the code position of a character must be specified after &#.
bare hcro;;The hexadecimal representation of the code position of a character must be specified after &#x.
bogus comment;;String <! is not followed by --.
bogus end tag;;String </ is not followed by tag name.
C1 character reference;;Character reference to {text} is not allowed.
CR character reference;;Character reference to U+000D (CARRIAGE RETURN) is not allowed.
dash in comment;;There is a -- sequence in a comment.
duplicate attribute;;There are two attributes with name {text}.
empty start tag;;Empty start tag (<>) is not allowed.
empty end tag;;Empty end tag (</>) is not allowed.
end tag attribute;;End tag cannot have attributes.
empty unquoted attribute value;;Attribute value is not specified.
invalid character reference;;Character reference to {text} is not allowed.
nestc;;Polytheistic slash (/>) cannot be used for this element.
no DOCTYPE name;;After the string <!DOCTYPE , the document type name must be specified.
no PUBLIC literal;;After the keyword PUBLIC, no oublic identifier is specified.
no refc;;Character reference must be closed by a ; character.
no space before DOCTYPE name;;After the string <!DOCTYPE, there must be at least a white space character before the document type name.
no space between attributes;;Attributes must be separeted by at least a white space character.
no SYSTEM literal;;After the keyword SYSTEM, no system identifier is specified.
pio;;Processing instruction (<?...>) is not allowed in HTML document.
string after DOCTYPE name;;There is a bogus string after the document type name.
string after PUBLIC;;There is a bogus string after the keyword PUBLIC.
string after PUBLIC literal;;There is a bogus string after the public identifier.
string after SYSTEM;;There is a bogus string after the keyword SYSTEM.
string after SYSTEM literal;;There is a bogus string after the system identifier.
unclosed attribute value;;Attribute value is not closed by a quotation mark.
unclosed comment;;Comment is not closed by a string -->.
unclosed DOCTYPE;;The DOCTYPE is not closed by a > character.
unclosed PUBLIC literal;;The public identifier literal is not closed by a quotation mark.
unclosed SYSTEM literal;;The system identifier literal is not closed by a quotation mark.
unclosed tag;;Tag is not closed by a > character.
after after frameset;;There is a start tag <{text}> is after the html element is closed.
after after frameset:/;;There is an end tag </{text}> is after the html element is closed.
after body;;Start tag <{text}> is not allowed after the body is closed.
after body:/;;End tag </{text}> is not allowed after the body is closed.
after body:#text;;Non‐white‐space characters are not allowed after the body is closed.
after frameset;;Start tag <{text}> is not allowed after the frameset is closed.
after frameset:/;;End tag </{text}> is not allowed after the frameset is closed.
after frameset:#text;;Non‐white‐space characters are not allowed after the frame is closed.
after head;;The {text} element cannot be inserted between head and body elements.
after html;;Start tag <{text}> is not allowed after the html is closed.
after html:/;;End tag </{text}> is not allowed after the html is closed.
after html:#text;;Non‐white‐space characters are not allowed after the html is closed.
image;;The image element is obsolete.
in a:a;;Anchor cannot be nested.
in body;;Start tag <{text}> is not allowed in the body element.
in body:#eof;;Some element is not closed before the end of file.
in button:button;;The button element cannot be nested.
in CDATA:#eof;;Element is not closed before the end of file.
in form:form;;Start tag <form> is not allowed in a form element.
in frameset;;Start tag <{text}> is not allowed in a framset element.
in frameset:/;;End tag </{text}> is not allowed in a frameset element.
in frameset:#text;;Non‐white‐space characters are not allowed in a frameset element.
in head:head;;Start tag <head> is not allowed in the head element.
in html:#DOCTYPE;;A DOCTYPE appears after any element or data character has been seen.
in nobr:nobr;;The nobr element cannot be nested.
in noscript;;The {text} element is not allowed in a noscript element in the head element.
in noscript:/;;An end tag </{text}> appers before the noscript element is closed.
in noscript:#eof;;A noscript element is not closed before the end of file.
in noscript:#text;;Non‐white‐space characters are not allowed in a noscript element in the head element.
in PCDATA:#eof;;Element is not closed before the end of file.
in select;;Start tag <{text}> is not allowed in a select element.
in select:/;;End tag </{text}> is not allowed in a select element.
in table;;Start tag <{text}> is not allowed in a table element.
in table:/;;End tag </{text}> is not allowed in a table element.
in table:#text;;Non‐white‐space character is not allowed within the table element, outside of the caption and cells.
isindex;;The isindex element is obsolete.
missing start tag:tr;;Start tag of tr element is missing.
no DOCTYPE;parse-error;This document does not start with a DOCTYPE.
not closed;parse-error;Element {text} is not closed.
not first start tag;parse-error;This <html> tag is not the first start tag.
not HTML5;parse-error;This document is written in an old version of HTML.
start tag not allowed;parse-error;Start tag <{text}> is not allowed here.
unmatched end tag;parse-error;Element {text} is not opened.
XSLT-compat;;The DOCTYPE legacy string is used.
basehref after URL attribute;;The base element with the href attribute specified cannot be placed after any attribute with a URL.
basetarget after hyperlink;;The base element with the target attribute specified cannot be placed after any element that defines a hyperlink.
character not allowed;;Data character is not allowed in this context.
character not allowed:empty;;Non‐white‐space characters are not allowed in an empty element.
character not allowed:atom|PersonConstruct;;Non‐white‐space characters are not allowed in Person construct.
character not allowed:atom|TextConstruct;;Non‐white‐space characters are not allowed in Text construct.
child element missing;;There must be an element {text} as a child of this element.
child element missing:td|th;content-model-error;There must be a td or th element as a child of this element.
child element missing:atom;;There must be an element {text} in the Atom namespace as a child of this element.
child element missing:atom:link:alternate;;There must be an Atom link element whose rel attribute is set to alternate as a child of this element.
child element missing:atom:link:self;;There should be an Atom link element whose rel attribute is set to self as a child of this element.
element missing:hn;;There must be at least one hn element descendant.
element not allowed;;This element is not allowed in this context.
element not allowed:area;;An area element cannot be used outside of a map element.
element not allowed:base;;There is another base element.
element not allowed:datatemplate;;In a datatemplate element, only rule elements are allowed.
element not allowed:details legend;;In a details element, only at the beginning of the element a lengend element may be used.
element not allowed:empty;;Elements are not allowed in an empty element.
element not allowed:figure legend;;In a figure element, only at the beginning or only at the end of the element a lengend element may be used.
element not allowed:flow;;This element is not allowed where flow content is expected.
element not allowed:flow style;;A style element without scoped attribute is not allowed in this context.
element not allowed:head noscript;;This element is not allowed in a noscript element in the head element.
element not allowed:head style;;A style element with scoped attribute is not allowed in the head element.
element not allowed:head title;;There is another title element.
element not allowed:minus;;This element is not allowed in this context.
element not allowed:meta charset;;The character encoding declaration is not the first child element in the head element.
element not allowed:metadata;;This element is not allowed where metadata content is expected.
element not allowed:phrasing;;This element is not allowed where phrasing content is expected.
element not allowed:root;;This element is not allowed as the root element of a document.
element not allowed:root:xml;;This element is not allowed as the root element of an XML document.
element not allowed:ruby base;;This element is not allowed in the ruby element.
element not allowed:text;;This element is not allowed in this context.
element not allowed:atom|content;;This element is not allowed in an Atom content element.
element not allowed:atom|PersonConstruct;;This element is not allowed in Person construct.
element not allowed:atom|TextConstruct;;This element is not allowed in Text construct.
element not defined;;This element is not defined.
no significant content;;No significant content is contained in this element.
no significant content before;;There is no significant content before this element.
no significant content at the end;;No significant content is contained at the end of this element.
ps element missing;;There is no {text} element before this element.
rp:syntax error;;The content of a rp element must be a parenthesis.
attribute missing;;Required attribute {text} is not specified.
attribute missing:data|type;;For an object at least one of data and type attributes must be specified.
attribute missing:href|target;;For a base element, at least one of href and target attributes must be specified.
attribute missing:name|http-equiv;;For a meta element with the content attribute specified, exactly one of name and http-equiv attributes must be specified.
attribute missing:name|http-equiv|charset;;For a meta element, exactly one of name, http-equiv, and charset attributes must be specified.
attribute not allowed;;Attribute {local-name} is not allowed for {element-local-name} element.
attribute not allowed:ismap;;The ismap attribute may only be used for the image contained in an a element.
attribute not defined;;This attribute is not defined.
in HTML:xml:lang;;The xml:lang attribute in HTML document is ignored.
in XML:charset;;The charset attribute is not allowed in XML document.
in XML:noscript;;A noscript element cannot be used in XML document.
in XML:xml:lang;;The xml:lang attribute in no namespace is only allowed in HTML document.
in XML:xmlns;;The xmlns attribute in the null namespace is not allowed in XHTML document. The document is non-conforming.
xml:lang not allowed;;The xml:lang attribute is only allowed when the lang attribute is specified.
boolean:invalid;;Attribute value {@} is not allowed. It must be an empty string or a string {local-name}.
char:syntax error;;The attribute value must be exactly one character.
charref in charset;;A character reference cannot be used to represent a character encoding name.
charset:not ascii compat;;Characeter encoding {value} is not ASCII compatible.
charset:not preferred;;Character encoding name {value} is not the preferred name of that character encoding.
charset:not registered;;Character encoding name {value} is not a registered name.
charset:private;;Character encoding name {value} is a private name.
charset:syntax error;;The specified value {value} is syntactically not a character encoding name.
color:syntax error;;The specified value is not a color name or hexadecimal color number.
coords:number not 3;;The coords attribute have to contain three (3) numbers (specified: {text}).
coords:number not 4;;The coords attribute have to contain four (4) numbers (specified: {text}).
coords:number lt 6;;The coords attribute have to contain more than or equal to six (6) numbers (specified: {text}).
coords:number not even;;The coords attribute have to contain even number of numbers (specified: {text}).
coords:out of range;;The specified value {value} is out of range.
coords:syntax error;;The specified value is not valid.
datetime:bad year;;Year number is out of range.
datetime:bad month;;Month number is out of range.
datetime:bad day;;Day number is out of range.
datetime:bad hour;;Hour number is out of range.
datetime:bad minute;;Minute number is out of range.
datetime:bad second;;Second number is out of range.
datetime:bad timezone hour;;Hour number of the timezone component is out of range.
datetime:bad timezone minute;;Minute number of the timezone component is out of range.
datetime:syntax error;;The attribute value is not a datetime.
dateortime:syntax error;;The value is not a date or time.
enumerated:invalid;;This attribute only allow a limited set of values and the specified value {@} is not one of them.
enumerated:invalid:http-equiv:content-type;attribute-value-error;Character encoding declaration syntax <meta http-equiv="Content-Type" content="text/html; charset=charset-name"> is obsolete.
enumerated:non-conforming;;Attribute value {@} is not allowed.
duplicate http-equiv;;There is another pragma {value}.
duplicate ID;attribute-value-error;This identifier has already been assigned to another element.
duplicate token;;The token {value} appears in the attribute value twice.
empty attribute value;;The attribute value is empty.
empty style sheet title;;The value of the title attribute is empty.
float:out of range;;The specified value is out of range.
float:syntax error;;The attribute value is not a real number.
fragment points itself;;A fragment identifier references the element itself.
fragment points nothing;;A fragment identifier references no node.
hashref:syntax error;;A hash−name reference must start with a # character.
id ne name;;The id attribute value is different from the name attribute value.
integer:syntax error;;The attribute value is not an integer.
link type:bad context;;The link type {value} cannot be specified for this element.
invalid attribute value;attribute-value-error;Attribute value {@} is not an allowed value.
length:syntax error;;The attribute value is not a length value.
link type:non-conforming;;The link type {value} is non-conforming.
meta content-type syntax error;;The specified value is not a valid as a long character encoding declaration.
mismatched charset name;;The specified character encoding name {value} is different from the actual document character encoding {text}.
mismatched charset name not checked;;Whether the specified character encoding name {value} matches to the actual character encoding name cannot be checked since the input is not a byte stream.
mode:syntax error;;The attribute value is not a valid mode name.
nninteger:out of range;;The specified value is out of range.
nninteger:syntax error;;The attribute value is not a non‐negative integer.
no referenced map;;The usemap attribute references no image map.
no referenced menu;;The contextmenu attribute references no menu.
no referenced header cell;;There is no table header cell whose id is {value} in the same table.
refresh:syntax error;;the specified value is not a valid as part of a Refresh pragma.
repeat:syntax error;;The attribute value is not an integer or a string template.
reserved browsing context name;attribute-value-error;Browsing context name {@} is reserved.
Reserved Prefixes and Namespace Names:Name;;Namespace name {text} is reserved and cannot be used for an arbitrary prefix.
Reserved Prefixes and Namespace Names:Prefix;;Namespace prefix {text} is reserved and cannot be used for an arbitrary namespace name.
link type:proposed;;Link type {value} is proposed but not accepted yet; it should not be used until it has been accepted.
sizes:syntax error;;The specified value {value} is not a valid value.
space in ID;;White space characters are not allowed in the id attribute.
template:not template;;The node referenced by the template attribute is not a template.
window name:empty;;Browsing context name must not be empty.
window name:reserved;;Browsing context name {value} is reserved.
word not allowed;;The word {value} is not allowed in this attribute.
XML 1.0 NCName:syntax error;;The specified value is not a legal XML Namespaces 1.0 NCName.
xml:lang ne lang;;The value of the xml:lang attribute is different from the value of the lang attribute.
cell overlapping;;Cell slot ({text}) is filled by multiple cells.
colspan creates column with no anchored cell;;This colspan attribute results in creating a table column that does not contain any cell anchored to it.
column with no anchored cell;;This column has no anchored cell.
table:no cell in last row;table-model-error;The table has no cell (td or th) in the last row.
table:rowspan extends table;table-model-error;This rowspan attribute results in creating a table row that does not contain any cell anchored to it.
row with no anchored cell;;This row has no anchored cell.
rowspan creates row with no anchored cell;;This rowspan attribute results in creating a table row that does not contain any cell anchored to it.
boundary:syntax error;;The specified value is not a valid value as a multipart boundary.
e4x:syntax error;;The specified value is not a valid value for the attribute e4x.
IMT:attribute syntax error;;The specified value, {value}, is syntactically not a valid attribute name.
IMT:composite;;The specified media type is a composite type, which is not allowed in this context.
IMT:limited use subtype;;An Internet Media Type whose intended usage is limited use, {value} is used.
IMT:syntax error;;The specified value is not an Internet Media Type.
IMT:obsolete parameter;;An obsolete parameter {value} is used.
IMT:obsolete subtype;;An obsolete Internet Media Type {value} is used.
IMT:parameter missing;;Parameter {text} have to be specified for the Internet Media Type {value}.
IMT:parameter not allowed;;Parameter {value} is not allowed for this Internet Media Type.
IMT:private subtype;;Use of a private Internet Media Type {value} is not encouraged.
IMT:private type;;Use of a private type {value} is not encouraged.
IMT:subtype syntax error;;Value {value} is syntactically not a valid subtype value of an Internet Media Type.
IMT:type syntax error;;Value {value} is syntactically not a valid type.
IMT:unknown parameter;;An unknown parameter {value} is used. The conformance checker cannot determine whether use of this parameter is valid or not.
IMT:unknown subtype;;An unknown Internet Media Type {value} is used. At the time of the update of the conformance checker's Internet Media Type database, the subtype is not reigstered to the IANA registry. The subtype, however, might be registerd to the IANA registry thereafter. Please consult the IANA registry.
IMT:unregistered subtype;;Use of an Internet Media Type {value} is not encouraged since it is not part of the IANA registry.
IMT:unregistered type;;Use of a type {value} is not encouraged since it is not a standardized type.
not IMT;;A value that is not an Internet Media Type is not allowed here.
syntax error:iri3987;;The specified value is syntactically not an IRI.
syntax error:iriref3987;;The specified value is syntactically not an IRI reference.
syntax error:rdfuriref;;The specified value is syntactically not an RDF URI reference.
syntax error:uri2396;;The specified value is syntactically not a URI according to RFC 2396.
syntax error:uri3986;;The specified value is syntactically not a URI.
URL:address format;;URL host address format {text} is not defined.
URL:default port;;Default port number should be omitted.
URL:dot-segment;;A dot-segment (. or ..) occurs in an absolute reference.
URL:empty host;;The host component of the URL is empty.
URL:empty path;;The URL does not end with a / character.
URL:empty port;;The port component of the URL is empty.
URL fragment not allowed;;The fragment component of the URL is not allowed.
URL:long host;;The host component of the URL is too long.
URL:lowercase hexadecimal digit;;A lowercase hexadecimal digit is used in percent-encoding.
URL:non-DNS host;;The host component of the URL is not a DNS host name.
URL:non UTF-8 host;;The host component of the URL is not encoded in UTF-8.
URL:password;;Password should not be included in a URL for the security.
URL:percent-encoded unreserved;;An unreserved character is percent-encoded.
URL:uppercase host;;The host {value} should be spelt in lowercase.
URL:uppercase scheme name;;URL scheme name is in uppercase.
mq syntax error;;The specified value has a syntax error as a media query.
unknown media type;;Media type {value} is not supported by the conformance checker.
an+b not closed;;Argument list of the pseudo-class is not closed by a ) character.
ab+b not integer;;Numbers in the argument an+b have to be integers.
an+b syntax error;;Argument an+b is syntactically incorrect.
attr selector not closed;;Attribute selector is not closed by a ] character.
lang selector not closed;;Argument list of the :lang selector is not closed by a ) character.
namespace prefix:not declared;;Namespace prefix {value} is not declared.
no attr local name;;Attribute local name is missing.
no attr match;;Attribute matching operator (e.g. =) is missing.
no attr name;;Attribute name is missing.
no attr namespace separator;;Attribute namespace wildcard * is not followed by a | character.
no attr value;;Attribute value is missing.
no class name selector;;Class name is missing.
no combinator;;Combinator is missing.
no contains string;;No string is specified in the argument list of the :-manakai-contains pseudo-class selector.
no lang tag;;Language tag argument is missing.
no local name selector;;Local name part of the type selector (or * for the universal selector) is missing.
no pseudo-class name;;Pseudo-class name is missing.
no pseudo-element name;;Pseudo-element name is missing.
no sss;;Sequence of simple selectors is expected.
not not closed;;Argument list of the :not selector is not closed by a ) character.
ss after pseudo-element;;Simple selector is not allowed after a pseudo element.
unknown pseudo-class;;Pseudo-class :{value} is not supported by the conformance checker.
unknown pseudo-element;;Pseudo-element ::{value} is not supported by the conformance checker.
at-rule not allowed;;An @{text} rule is not allowed here.
at-rule syntax error;;The @{text} rule is syntactically incorrect.
block not closed;;Block is not closed before the end of file.
CSS duplication;;Component <{text}> is already specified.
CSS cursor hand;;Value hand is not valid as <'cursor'>.
CSS syntax error;;Specified value is syntactically not a correct <{text}>.
no declaration block;;No declaration block is found after a group of selectors.
no property colon;;A : character is missing after a property name.
no property name;;Property name is expected.
no property semicolon;;A ; character is missing at the end of the property.
priority syntax error;;Priority part of the declaration is syntactically incorrect.
unknown at-rule;;The @{value} rule is not supported by the conformance checker.
unknown property;;Property {value} is not supported by the conformance checker.
both in entries and whitelist;;This URL is found both in the explicit or fallback entries and in the online whitelist.
different origin from manifest;;The specified URL has different origin from the manifest.
different scheme from manifest;;The scheme component of the URL is different from that of the manifest URL. The URL is ignored.
duplicate oc namespace;;This oppotunistic caching namespace is already specified.
no fallback entry URL;;Fallback entry URL is missing.
not manifest;;This document is not a cache manifest.
same as manifest URL;;This URL is same as the manifest URL.
after argument;;An argument name is not followed by a , character or a ) character.
after exception name;;An exception name is not followed by a , character or a ) character.
after unsigned;;キーワード unsigned の後の字句が short か long ではありません。
after xattr;;An extended attribute is not followed by a , character or a ] character.
argument after variadic;;An argument is specified after an argument with Variadic extended attribute is seen.
attr not readonly;;Extended attribute {text} is specified for an attribute that is not read-only.
attr type not interface;;Extended attribute {text} is specified for an attribute whose type is not an interface.
before exception member;;An unknown construct is found where an exception member or a } character is expected.
before interface member;;An unknown construct is found where an interface member or a } character is expected.
before webidl block;;An identifier for the {text} is not followed by a { character.
before webidl def;;An unknown construct is found after an extended attribute list (where a Definition is expected).
before webidl defs;;An unknown construct is found where a Definition (optionally preceded by an extended attribute list) is expected.
before webidl type;;The type for {text} is not specified.
before webidl type:argument;;The type for an argument is not specified.
before webidl type:exception member;;The type for an exception member is not specified.
before xattr;;No extended attribute is specified after a [ character.
before xattrarg;;No identifier is specified in an extended attribute assignment.
const value out of range;;The specified value {value} is outside of the range of the type for the constant, {text}.
const type mismatch;;The type of the value, {value}, is different from the type of the constant, {text}.
duplicate accessor;;Extended attribute {text} is already specified for another operation in the same interface.
duplicate constructor name;;Constructor name {value} specified by extended attribute {text} is already used for an interface.
duplicate member;;Name {text} is already used.
duplicate qname;;Qualified name {text} is already used.
duplicate xattr;;Extended attribute {text} is already specified.
exception not defined;;Exception {text} is not defined in the fragment.
interface not defined;;Interface {text} is not defined in the fragment.
no arguments in;;No in keyword for an argument is found.
no arguments lparen;;No ( character for an argument list is found.
no raises lparen;;A raises (or getraises or setraises) keyword is not followed by a ( character.
no sequence gt;;A sequence<> type is not terminated by a > character.
no sequence lt;;Keyword sequence is not followed by a < character.
no sequence type;;No type is specified in sequence<>.
no webidl identifier;;No identifier is specified for the {text}.
no webidl identifier:argument;;No identifier is specified for the argument.
no webidl identifier:exception member;;No identifier is specified for the exception member.
no webidl identifier:operation;;No identifier is specified for the operation.
no webidl semicolon;;No semicolon is found at the end of the definition or member.
non-module definition;;This definition is not part of any module.
not boxable type;;Type {text} cannot be used in valuetype.
premature end of webidl;;The WebIDL fragment ends before all the blocks are closed by }; sequences.
referenced attr not defined;;Attribute {value} is not defined in the interface specified for the attribute to which extended attribute {text} is set.
scoped name;;A scoped name is expected here.
scoped name:dcolon;;A :: token is not followed by an identifier or a DOMString keyword.
type not defined;;Type {text} is not defined.
typedef ignored;;typedef of name DOMString is ignored.
unknown xattr;;An unknown extended attribute {text} is used.
valuetype DOMString;;The valuetype definition does not define DOMString as sequence<unsigned short>.
valuetype ignored;;valuetype of name DOMString is ignored.
wrong signature accessor;;The operation cannot be used as accessor operation of {text}, since its signature different from the expected one.
xattr arglist not allowed;;Use of an argument list for extended attribute {text} is not allowed.
xattr for wrong type;;Extended attribute {text} is not applicable for an attribute whose type is not DOMString.
xattr id missing;;The identifier for extended attribute {text} is not specified.
xattr id not allowed;;Use of an identifier for extended attribute {text} is not allowed.
xattr id value not allowed;;The identifier {value} is not an allowed value for extended attribute {text}.
xattr not applicable;;Extended attribute {text} is not applicable to this kind of object.
deprecated:attr;;This attribute is deprecated.
deprecated:element;;This element is deprecated.
status:cr:element;;This element is in the call for implementation stage.
status:lc:element;;This element is in the last call for comments stage.
status:wd:element;;This element is documented in a working draft.
status:non-standard:element;;This element is not part of any standard the conformance checker knows.
status:cr:attr;;This attribute is in the call for implementation stage.
status:lc:attr;;This attribute is in the last call for comments stage.
status:wd:attr;;This attribute is documented in a working draft.
status:non-standard:attr;;This attribute is not part of any standard the conformance checker knows.
langtag:extension:duplication;;There is another extension subtag {value}.
langtag:extension:order;;Extension subtag {value} is placed after subtag {text}.
langtag:extension:unknown;;Extension {value} is not defined when the conformance checker is written.
langtag:extlang:case;;Extended language subtag {value} is not in the preferred form, i.e. in lowercase.
langtag:extlang:deprecated;;Use of extended language subtag {value} is deprecated.
langtag:extlang:prefix;;Extended language subtag {text} is not allowed in the combination with this language (and extended language) subtag(s).
langtag:extlang:invalid;;Extended language subtag {text} is not registered.
langtag:grandfathered:case;;Language tag {value} is not in the preferred case combination.
langtag:grandfathered:deprecated;;Use of language tag {value} is deprecated.
langtag:grandfathered:invalid;;Language tag {value} is not a combination of RFC 4646 subtags and is not a registered grandfathered tag.
langtag:illegal;;Subtag {value} is syntactically invalid.
langtag:language:case;;It is a good practice to represent ISO 639-1 language code {value} in lowercase.
langtag:language:deprecated;;Use of language subtag {value} is deprecated.
langtag:language:invalid;;Language subtag {value} is not registered.
langtag:language:mul;;Langauge tag mul should not be used.
langtag:language:nosemantics;;No semantics is defined for language subtag {value}.
langtag:language:private;;Language subtag {value} is a private use code.
langtag:language:syntax;;The language subtag {value} is syntactically invalid.
langtag:language:und;;Langauge tag und should not be used.
langtag:private;;It would be better if a private use language tag ({value}) is not used.
langtag:privateuse;;Private use subtag {value} is used.
langtag:privateuse:case;;Subtag {value} is not represented in the preferred case format.
langtag:privateuse:syntax;;Private use subtag {value} is syntactically invalid.
langtag:redundant:case;;Language tag {value} is not in the preferred case combination.
langtag:redundant:deprecated;;Use of language tag {value} is deprecated.
langtag:region:case;;It is a good practice to represent ISO 3166 country code {value} in uppercase.
langtag:region:deprecated;;Use of region subtag {value} is deprecated.
langtag:region:nosemantics;;No semantics is defined for region subtag {value}.
langtag:region:invalid;;Region subtag {value} is not registered.
langtag:region:private;;Use of private use country code {value} is not allowed.
langtag:script:case;;Script subtag {value} is not in the preferred form, i.e. titlecase.
langtag:script:deprecated;;Use of script subtag {value} is deprecated.
langtag:script:invalid;;Script subtag {value} is not registered.
langtag:script:private;;Script subtag {value} is a private use code.
langtag:script:suppress;;Script subtag {value} should be suppressed when the language subtag is {text}.
langtag:variant:case;;Variant subtag {value} is not in the preferred form, i.e. lowercase.
langtag:variant:combination;;Variant subtag {text} might not be meaningful when it is used in combination with {value}.
langtag:variant:deprecated;;Use of variant subtag {value} is deprecated.
langtag:variant:duplication;;Variant subtag {value} is specified twice.
langtag:variant:invalid;;Variant subtag {value} is not registered.
langtag:variant:prefix;;Variant subtag {value} cannot be used in this context.
bad rdf namespace;;The namespace URI of an element that represents an RDF concept must be http://www.w3.org/1999/02/22-rdf-syntax-ns#.
duplicate rdf id;;The specified value is already used as an ID.
duplicate unqualified attr;;Both unqualified attribute and namespace‐qualified RDF attribute are specified, which is not allowed.
parse type other;;An invalid value is specified to the parseType attribute.
second node element;;There is another element, such that this element is not allowed.
unqualified attr;;Unqualified attribute is not allowed.
unqualified rdf attr;;RDF attribute should be namespace‐qualified.
unknown element;;Conformance checking for element {local-name} is not supported; it might or might not be conforming.
unknown attribute;;Conformance checking for attribute {local-name} of element {element-local-name} is not supported; it might or might not be conforming.
unknown link type;;Link type {value} is not standardized or registered at the time of the release of the conformance checker; it is non-conforming unless it now has been registered.
event handler;;Conformance checking for event handler attribute is not supported; it might or might not be conforming.
media query;;Conformance checking for media query is not supported; it might or might not be conforming.
addr-spec not supported;;Conformance checking for an addr-spec is not supported; it might or might not be conforming.
XML script lang;;Conformance checking for script language {text} is not supported; it might or might not be conforming.
XML style lang;;Conformance checking for style language {text} is not supported; it might or might not be conforming.
atom|content not supported;;Conformance checking for an Atom content element with type {text} is not supported.
help not available;;No more information is available.
Input;;Input
By URL;;By URL
By direct input;;By direct input
Options;;More options
Check error page;;Check an error page
Content type;;Content type
Charset;;Character encoding
As specified;;As specified
Japanese charsets;;Japanese character encodings
European charsets;;European character encodings
Asian charsets;;Asian character encodings
Unicode charsets;;Unicode character encodings
Document source to check;;Document source to check
Check;;Check
Setting innerHTML;;Setting innerHTML of HTML element
Information;;Information
HTTP Header;;HTTP Header
Parse Errors Section;;Parse Errors
Parse Errors;;Parse Errors
Document Source;;Document Source
Source;;Source
Tables Section;;Structure of Tables
Tables;;Tables
Document Tree;;Document Tree
Tree;;Tree
Document;;Document
Document Structure;;Document Structure
Structure;;Structure
Reformatted Document Source;;Reformatted Document Source
Reformatted;;Reformatted
RDF Triples;;RDF Triples
RDF;;RDF
Structural Errors;;Structural Errors
Struct. Errors;;Struct. Errors
Transfer Errors;;Transfer Errors
Trans. Errors;;Trans. Errors
Result;;Result
manakaiCompatMode:quirks;;Quirks Mode
manakaiCompatMode:limited quirks;;Limited Quirks Mode
manakaiCompatMode:no quirks;;No Quirks Mode
manakaiIsHTML:1;;HTML Document
manakaiIsHTML:0;;XML Document
manakaiCharset;;charset parameter
inputEncoding;;Input character encoding
xmlVersion;;XML version
xmlEncoding;;XML encoding
xmlStandalone;;XML standalone
... with BOM;; (with BOM)
URL;;URL
URLs;;URLs
Container Node;;Container Node
Table Element;;Table Element
Base URL;;Base URL
Internet Media Type;;Internet Media Type
Character Encoding;;Character Encoding
Byte Length;;Byte Length
Character Length;;Character Length
... overridden;; (overridden)
... overridden, official type is #;; (overridden; official type is {text})
... sniffed;; (sniffed)
byte;;byte
bytes;;bytes
Explicit entries;;Explicit entries
Fallback entries;;Fallback entries
Opportunistic caching namespace;;Opportunistic caching namespace
Fallback entry;;Fallback entry
Online whitelist;;Online whitelist
No entry;;No entry
Subject;;Subject
Predicate;;Predicate
Object;;Object
character;;character
characters;;characters
Line #;;Line {text}
column #;;column {text}
Index #;;Index {text}
Unknown location;;Unknown location
(unknown);;(Unknown)
Description;;Description
Table #;;Structure of Table #{text}
Subdocument #;;Subdocument #{text}
Sub #;;Sub #{text}
...;;..
Score;;Score
Subtotal;;Subtotal
Total;;Total
Main document;;Main document
Subdocuments;;Subdocuments
Transfer L.;;Transfer
Encode L.;;Encoding
Char L.;;Character
Syntax L.;;Syntax
Structure L.;;Structure
Semantics L.;;Semantics
N/A;;N/A
No error found.;;No error found.
No transfer error found.;;This document has no transfer protocol header error.
No parse error found.;;This document has no parse error.
No structural error found.;;This document has no structral error.
This checker is work in progress.;; Important: This conformance checking service is under development. The result above might be wrong.
Conformance is conforming;;No conformance‐error is found in this document. Conformance is should-error;;This document is likely non-conforming, but in rare case it might be conforming. The checker cannot determine whether this document is in the rare case or not. Conformance is non-conforming;;This document is non-conforming. Conformance is uncertain;;The conformance checker cannot decide whether the document is conforming or not, since the document contains one or more unsupported features. The document might or might not be conforming. Error level m;;MUST‐level error Error level s;;SHOULD‐level error Error level w;;Warning Error level i;;Information Error level u;;Not supported