This changes includes two semi-related things:
1. Fixes some specification compliance issues when parsing mime
types and charsets for `XMLHttpRequest`.
2. Implements a `<stylesheet>` parsing quirk involving mime types.
Testing: There are tests for these changes.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
* Update overrideMimeType to match xhr spec
* Update final-encoding to match xhr spec
* Fix an issue and add more comments
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Co-authored-by: Martin Robinson <mrobinson@igalia.com>