This extension hook has no documentation on MediaWiki.org. Please improve MediaWiki by adding documentation to it. See Template:ExtensionHook for instructions on how to do it.

For examples of extensions using this hook, see Category:FlowCheckHtmlContentXss extensions . Category:Extension hooks#FlowCheckHtmlContentXss Category:Undocumented extension hooks#FlowCheckHtmlContentXss Category:Extension hooks provided by Structured Discussions Category:Extension hooks#FlowCheckHtmlContentXss Category:Undocumented extension hooks#FlowCheckHtmlContentXss Category:Extension hooks provided by Structured Discussions