Support sanitization of attributes that require Trusted Types #699
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Summary
This PR should fix 660 for attributes without namespace.
Background & Context
We want to use DOMPurify to allow
script.src
attribute and provide custom src validation via hooks. This is not possible today as DOMPurify will call setAttribute with raw string and cause Trusted Types Sink violation.This PR leverages TrustedTypePolicyFactory.getAttributeType() to handle such cases.