Bug#474156: epiphany-browser: sometimes places 1px-wide window at top left of screen

[Andreas Bombe]

On Sat, Apr 26, 2008 at 11:36:31PM +0200, Josselin Mouette wrote:
> Le jeudi 03 avril 2008 à 20:07 +0100, Will Thompson a écrit :
> > After running Epiphany for some time, I discover that a one pixel wide,
> > fourteen pixel high window has been created at the top-left corner of my
> > screen, right above the Applications menu.
> 
> Does it still happen with epiphany 2.22 in unstable?

I happen to see this too, and investigated it a bit.  It appears to be
the non-free flash plugin's fault, the corner window appears when a
flash object is loaded.  Actually these windows are accumulating with
every load, after some browsing you end up with plenty of those.  That's
visible in compositing window managers that draw a slight shadow around
those windows.  It gets pretty dark in that corner after some time.

However it's not even the flash plugin's fault.  I noticed such corner
windows appear when opening info windows of BitTornado (a bittorrent
client).  The commonality of those two is that both use GTK+ (BitTornado
indirectly through wxgtk).  I suspect some uncommon widget usage shared
between flash and wxgtk triggers this issue.

In conclusion, this bug should be reassigned to GTK+.