1891594 - Show UI elements in right browser frame

Status: NEW

(Firefox :: Data Loss Prevention, enhancement)

Description

[David Parks [:handyman]]

At the moment, the slow DLP dialog and the results dialogs are posted to the root browser in the tab. iframes will block an entire tab while waiting for DLP results. We can do better by using ContentAnalysis.sys.mjs in the right process, which would require some synchronization. (This won't work for clipboard operations atm since they block the child process.)

Comment 1

[David Parks [:handyman]]

Since the UI is shown on a given BrowsingContext as a response to "dlp-request-made" and "dlp-response" observable messages, this would almost be simple. The stickiest point is simply that all observers in a process would be alerted (which is unfortunate, even if we were to cross-check the observer with the request to avoid errors). We could target listeners more directly.