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This changes the logic of
clean_html()from being a blacklist to being a whitelist instead, since I found multiple ways to do harmful stuff otherwise.Also, the user is now allowed to explicitly allow anything using the new config parameter
RENDERER_HTML_WHITELIST, which follows a (hopefully) simple format oftag1[attr1 attr2],tag2,tag3[attr3], for example:Please check out the list of default allowed tags and attributes, see if something needs to be added or removed.