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Gary Pendergast
9ca3e8f36b
This change adds two now attribute-related config options to KSES: - An array of allowed values can be defined for attributes. If the attribute value doesn't fall into the list, the attribute will be removed from the tag. - Attributes can be marked as required. If a required attribute is not present, KSES will remove all attributes from the tag. As KSES doesn't match opening and closing tags, it's not possible to safely remove the tag itself, the safest fallback is to strip all attributes from the tag, instead. Included with this change is an implementation of these options, allowing the `<object>` tag to be stored in posts, but only when it has a `type` attribute set to `application/pdf`. Props pento, swissspidy, peterwilsoncc, dd32, jorbin. Fixes #54261. git-svn-id: https://develop.svn.wordpress.org/trunk@51963 602fd350-edb4-49c9-b593-d223f7449a82