O9.501823(.6) | X window System error

1. Start Opera w/ -pd option (non-existent directory)

2. Ensure that only the gecko-mediaplayer plugins are picked up. I'm
   running 0.6.0 tarball.

3. Exit Opera

4. opera ~/._foobar -debugplugin

5. F2 http://www.apple.com/trailers/weinstein/imnotthere/

6. Click on the High Definition link

7. The page loads fine -- on my system

8. Now go back <Alt+LeftArrow>

The last portion of the log:

Exiting list_parse_qml
The program 'operapluginwrapper' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
  (Details: serial 750 error_code 3 request_code 4 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

9. Exit Opera

10. Go to step 4.

This is a solid failure on my system -- I can repeat 4. through
10. and always get the BadWindow error.

-- 

Bug-report submitted -  bug-314471

"Robt. W. Fletcher Jr" <me@wa.us> writes:

> 1. Start Opera w/ -pd option (non-existent directory)
>
> 2. Ensure that only the gecko-mediaplayer plugins are picked up. I'm
>    running 0.6.0 tarball.
>
> 3. Exit Opera
>
> 4. opera ~/._foobar -debugplugin
>
> 5. F2 http://www.apple.com/trailers/weinstein/imnotthere/
>
> 6. Click on the High Definition link
>
> 7. The page loads fine -- on my system
>
> 8. Now go back <Alt+LeftArrow>
>
> The last portion of the log:
>
> Exiting list_parse_qml
> The program 'operapluginwrapper' received an X Window System error.
> This probably reflects a bug in the program.
> The error was 'BadWindow (invalid Window parameter)'.
>   (Details: serial 750 error_code 3 request_code 4 minor_code 0)
>   (Note to programmers: normally, X errors are reported asynchronously;
>    that is, you will receive the error a while after causing it.
>    To debug your program, run it with the --sync command line
>    option to change this behavior. You can then get a meaningful
>    backtrace from your debugger if you break on the gdk_x_error()
function.)
>
> 9. Exit Opera
>
> 10. Go to step 4.
>
> This is a solid failure on my system -- I can repeat 4. through
> 10. and always get the BadWindow error.


I can not duplicate this issue w/ O9.50-1875(.6)

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