(In reply to Julian Descottes [:jdescottes] from comment #4) > My try push didn't have any failure. All failures have been detected on Linux, maybe emptyClipboard doesn't work correctly on this platform? I think it probably because we are only allowed to clear clipboard only if the clipboard data is set by our self in Linux, https://searchfox.org/mozilla-central/rev/287583a4a605eee8cd2d41381ffaea7a93d7b987/widget/gtk/nsClipboard.cpp#598-601.
Bug 1774913 Comment 6 Edit History
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(In reply to Julian Descottes [:jdescottes] from comment #4) > My try push didn't have any failure. All failures have been detected on Linux, maybe emptyClipboard doesn't work correctly on this platform? I think it probably because we are allowed to clear clipboard only if the clipboard data is set by our self in Linux, https://searchfox.org/mozilla-central/rev/287583a4a605eee8cd2d41381ffaea7a93d7b987/widget/gtk/nsClipboard.cpp#598-601.