[Webkit-unassigned] [Bug 126124] New: Entering text into forms on github.com creates a blue trapezoid artifact

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=126124

           Summary: Entering text into forms on github.com creates a blue
                    trapezoid artifact
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://github.com
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mcatanzaro at gnome.org


When typing in text boxes on github.com, sometimes a blue trapezoid artifact is created in the background of the text field.  This does not seem to occur in other browsers.

Unfortunately, the trapezoid disappears whenever I attempt to take a screenshot, and I'm not entirely sure what triggers it. However, a reliable reproducer -- if you have a GitHub account -- is to find some text field, hit the Enter key once or twice, then Ctrl+A to select all. The blue trapezoid appears underneath the selection, and remains if you hit the down arrow key to deselect everything.

webkitgtk3-2.2.3-1.fc20
epiphany-3.10.2-1.fc20

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