Create nodes in the realm of the document they are created for#1491
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Which realm a node is created in was unspecified, so implementations disagreed when a node was created for a document whose relevant realm differed from the one running the algorithm (e.g. parsing, importing, or cloning into an adopted node's document). This also makes the HTML parser initialize processing instructions, populating their attribute map as createProcessingInstruction() and the constructor already did. Fixes #977. Tests: web-platform-tests/wpt#61212
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Align with DOM in creating parsed nodes in the relevant realm of their node document rather than the realm running the parser. DOM PR: whatwg/dom#1491 Tests: web-platform-tests/wpt#61212
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Which realm a node is created in was unspecified, so implementations disagreed when a node was created for a document whose relevant realm differed from the one running the algorithm (e.g., parsing, importing, or cloning into an adopted node's document).
This also makes the HTML parser initialize processing instructions, populating their attribute map as
createProcessingInstruction()and the constructor already did.Fixes #977.
(See WHATWG Working Mode: Changes for more details.)
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