How to whitelist just some attributes with HTMLpurifier?

StackOverflow https://stackoverflow.com/questions/670031

Question

How to whitelist just some attributes with HTMLpurifier? I want HTMLpurifier to delete all the other, not allowed attributes.

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Solution

HTML.AllowedAttributes. Note that when using HTML.AllowedAttributes, you need to also be using HTML.AllowedElements. And you'll probably need to add more as you go along. Like AllowedFrameTargets for target="", AllowedRel, AllowedRev, EnableAttrID, ... Not much choice but testing thoroughly.

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