Reported: https://dashboard.buddybuild.com/apps/57bf25c0f096bc01001e21e0/crashreport/b22be58e0b0bfe93096ba14fa1489532 The content blocker API has some undocumented areas, for instance what to do when a lookUpContentRuleList() returns a blank rule. That function should return valid rules that were previously loaded into the WKWebView. This is the first time we have hit this code path, could be due to an OS update an this behaves differently. The release build will just ignore the rule ATM. However, knowing that this code path is hit, we should try re-install the rule.
Created attachment 8921653 [details] [review] Pull request We have 2 reports of this assert() since ContentBlockers were added. Lets gather more info with Sentry.
on master and v10.x