Uncaught Exception in Web Inspector. Steps to Reproduce: 1. What were you doing? I came back to Safari and the error page was there in the opened, detached Web Inspector. Uncaught Exceptions: ----------------------- - Page domain already enabled (at Connection.js:147:29) _dispatchResponseToPromise @ Connection.js:147:29 _dispatchResponse @ Connection.js:109:44 dispatch @ Connection.js:62:35 dispatchMessageFromTarget @ TargetManager.js:159:35 dispatchMessageFromTarget @ TargetObserver.js:47:51 _dispatchEvent @ Connection.js:195:26 dispatch @ Connection.js:64:32 dispatch @ InspectorBackend.js:219:52 ? @ MessageDispatcher.js:42:34 ----------------------- Notes: Inspected URL: https://discussions.apple.com/thread/3829529 Loading completed: true Frontend User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/605.1.15 (KHTML, like Gecko)