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WPT

wpt / domparsing / XMLSerializer-serializeToString.html

Spec: DOM Parsing and Serialization ↗

Runs: Chrome 155.0.8041.0 (wpt@18be93235, 2026-09-04) | Firefox 157.0a1 (wpt@18be93235, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-70fb3 (wpt@0c9001c53, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)

View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi

ChromeFirefoxSafariLadybirdServoBlitz
Total27/3319/3323/3315/333/33NOT RUN
SubtestChromeFirefoxSafariLadybirdServoBlitz
check XMLSerializer.serializeToString method could parsing xmldoc to stringPASSPASSPASSPASSPASS—
check XMLSerializer.serializeToString method could parsing document to stringPASSPASSPASSPASSFAIL—
Check if the default namespace is correctly reset.PASSPASSPASSPASSFAIL—
Check if there is no redundant empty namespace declaration.PASSPASSPASSPASSFAIL—
Check if redundant xmlns="..." is dropped.PASSFAILFAILPASSFAIL—
Check if inconsistent xmlns="..." is dropped.PASSFAILFAILPASSFAIL—
Drop inconsistent xmlns="..." by matching on local nameFAILPASSFAILFAILFAIL—
Check if an attribute with namespace and no prefix is serialized with the nearest-declared prefixPASSPASSPASSFAILFAIL—
Check if an attribute with namespace and no prefix is serialized with the nearest-declared prefix even if the prefix is assigned to another namespace.FAILFAILFAILFAILFAIL—
Check if the prefix of an attribute is replaced with another existing prefix mapped to the same namespace URI.PASSPASSPASSFAILFAIL—
Check if the prefix of an attribute is NOT preserved in a case where neither its prefix nor its namespace URI is not already used.FAILFAILFAILFAILFAIL—
Check if the prefix of an attribute is replaced with a generated one in a case where the prefix is already mapped to a different namespace URI.PASSFAILPASSFAILFAIL—
Attribute value escapes: ltPASSPASSPASSPASSFAIL—
Attribute value escapes: gtPASSPASSPASSPASSFAIL—
Attribute value escapes: quotPASSPASSPASSPASSFAIL—
Attribute value escapes: aposPASSPASSPASSPASSFAIL—
[TENTATIVE] check XMLSerializer.serializeToString escapes attribute values for roundtrippingPASSPASSPASSFAILFAIL—
Check if attribute serialization takes into account of following xmlns:* attributesPASSFAILFAILFAILFAIL—
Check if attribute serialization takes into account of the same prefix declared in an ancestor elementPASSFAILPASSFAILFAIL—
Check if start tag serialization drops element prefix if the namespace is same as inherited default namespace.PASSFAILFAILFAILFAIL—
Check if start tag serialization finds an appropriate prefix.PASSPASSPASSFAILFAIL—
Check if end tag serialization matches start tag when an appropriate prefix is found.PASSPASSPASSFAILFAIL—
Check if start tag serialization takes into account of its xmlns:* attributesPASSFAILFAILFAILFAIL—
Check if start tag serialization applied the original prefix even if it is declared in an ancestor element.PASSFAILPASSFAILFAIL—
Check if start tag serialization does NOT apply the default namespace if its namespace is declared in an ancestor.FAILFAILFAILFAILFAIL—
Check if end tag serialization matches start tag for elements in the XML namespace.PASSPASSPASSPASSFAIL—
Check if generated prefixes match to "ns${index}".PASSFAILPASSPASSFAIL—
Check if "ns1" is generated even if the element already has xmlns:ns1.FAILFAILFAILFAILFAIL—
Check if no special handling for XLink namespace unlike HTML serializer.PASSFAILPASSFAILFAIL—
Check if document fragment serializes.PASSPASSPASSPASSPASS—
Check children were included for void elementsPASSPASSPASSPASSFAIL—
Check if a prefix bound to an empty namespace URI ("no namespace") serializeFAILPASSPASSFAILFAIL—
Attribute nodes are serialized as the empty stringPASSPASSPASSPASSPASS—