Hi everyone,

In order to fully align with the latest Mixed Content Handling spec, bolster security, and create a better architecture for our upcoming site isolation changes, I am proposing the removal of the following settings/functions/signal below. 

allowRunningOrDisplayingInsecureContent
isStrictMixedContentMode
allowRunningOfInsecureContent
allowDisplayOfInsecureContent
setFoundMixedContext
didDisplayInsecureContent
didRunInsecureContent
WebKitWebView::insecure-content-detected signal

A few years ago, there was strong support for these removals here: https://github.com/WebKit/WebKit/pull/9577#discussion_r1095915718 but due to time constraints, they never happened. I’d like to restart the conversation and hopefully get these changes done. Please let me know what you think.

Thanks,
Ruthvik