TLDR Web Dev · MISCELLANEOUS
HOW I FOUND A BYPASS IN GOOGLE'S BIG ANTI-ADBLOCK UPDATE
Summary from the TLDR Web Dev newsletter
This dev discovered a bug in Google Chrome that allowed MV3 extensions to bypass the intended restrictions on `webRequestBlocking`, a feature necessary for adblockers that Google was phasing out. The bug exploited a loophole in how Chrome handled WebView IDs within the `webRequest` API, allowing extensions to spoof permissions and reinstate the blocking functionality.