Bug 28995 – Not able to play Youtube videos r48037

• Component: New Bugs
• Status: RESOLVED CONFIGURATION CHANGED

When I launch Safari i'm able to play youtube video and other videos.
When I launch WebKit r48037 i'm not able to play Youtube videos.

Anything wrong ?

[Alexey Proskuryakov]

I cannot reproduce this problem on a Mac Pro (64-bit) running Mac OS X 10.6 with r48139 nightly.

I read on Apple discussions board's that many users are having problems with youtube and other flash videos and showave videos.
Therefore it seems to be a flash/shockwave problem.

[Daniel Bates]

Is this still an issue?

[Joe Z]

Same issue with youtube and other flash videos on webkit r55354. No video appears, even though they work in Firefox and stable Safari 4.

Macbook 3,1 
2.2 gHz intel duo
4 gb RAM
GMAX3100 video card

[Daniel Bates]

Joe,

Can you provide an example URL that demonstrates the issue? Moreover, what version of Flash do you have installed? (On a Mac, see Help->Installed Plug-ins).

(In reply to comment #4)
> Same issue with youtube and other flash videos on webkit r55354. No video
> appears, even though they work in Firefox and stable Safari 4.
> 
> Macbook 3,1 
> 2.2 gHz intel duo
> 4 gb RAM
> GMAX3100 video card

[Daniel Bates]

Joe,

Can you try the following:

1) Quit Safari and/or any WebKit nightly that you currently have open.
2) Move the Safari and WebKit preference files (com.apple.Safari.plist, and org.webkit.nightly.WebKit.plist) from your ~/Library/Preferences to some other folder, say the Desktop.
3) Open Safari/WebKit Nightly.
4) Visit a web site with flash that failed for you.

Note, Safari and the WebKit nighties will re-generate these files.

If this resolves the issue, can you please post your preference files to the bug?

Otherwise, to restore your old preference files, quit Safari and/or WebKit nightly and move those files back into ~/Library/Preferences (replacing any existing files). Then open Safari and/or WebKit nightly.

(In reply to comment #4)
> Same issue with youtube and other flash videos on webkit r55354. No video
> appears, even though they work in Firefox and stable Safari 4.
> 
> Macbook 3,1 
> 2.2 gHz intel duo
> 4 gb RAM
> GMAX3100 video card

[Joe Z]

When I launched webkit this morning to find the URL's, the videos worked. I didn't update webkit but my com.apple.safari.plist and org.webkit.nightly.webkit.plist indicate that they were modified at 8:00 this morning, the same time that I launched webkit. I didn't touch the files, so webkit must have changed them on its own.

If I find future bugs, I assume I should back up these plist files while the bug is occurring?

Yesterday, though, I was unable to launch any youtube videos, this flash video:   http://www.funnyordie.com/videos/225c3c41dd/attack-cardio-with-vinnie-jones   , or a flash game on newgrounds. Seems like webkit couldn't find the flash plugin at all.

[Daniel Bates]

(In reply to comment #7)
> When I launched webkit this morning to find the URL's, the videos worked. I
> didn't update webkit but my com.apple.safari.plist and
> org.webkit.nightly.webkit.plist indicate that they were modified at 8:00 this
> morning, the same time that I launched webkit. I didn't touch the files, so
> webkit must have changed them on its own.
> 
> If I find future bugs, I assume I should back up these plist files while the
> bug is occurring?

Yes. I'm not sure how useful these plist files will be, but the more information you can provide the better since neither I nor Alexey have been able to reproduce this issue. Also, provide any other information and/or attachments. For instance, a screen shot of the page when it happens. I mean, do you see a missing plugin icon? or is the area that would have contained the flash element empty? Maybe some kind of error message was written to the system log file /var/log/system.log (use the Console application in /Applications/Utilities to view the log files).

> Yesterday, though, I was unable to launch any youtube videos, this flash video:
>   http://www.funnyordie.com/videos/225c3c41dd/attack-cardio-with-vinnie-jones  
> , or a flash game on newgrounds. Seems like webkit couldn't find the flash
> plugin at all.

The video loads and plays for me.

[Joe Z]

Created attachment 49815 [details]
Crash of webkit plugin host, possibly associated with failure to display flash content

[Joe Z]

(In reply to comment #8)
I'm looking at the backed up system.log files (system.log.0.bz2) and on march
1st the following error was written to the console 14 times (at different times
of the day):

Mar  1 15:55:57 MacBook com.apple.WebKit.PluginAgent[59664]: Debugger() was
called!

I've also attached a .crash file of the webkit plugin host, that was written on
2-27-10. Not sure how long this bug goes back, since I don't view flash videos
every day, but it may be realated. 

There was no missing plugin symbol, the page casually finished loading, leaving
a space for the video, but not displaying any of the playback buttons or
border. Just whatever the background color was.

[Alexey Proskuryakov]

> Mar  1 15:55:57 MacBook com.apple.WebKit.PluginAgent[59664]: Debugger() was
> called!

That's normal, the Flash plugin logs these messages all the time. The crash looks alarming though.

[Alexey Proskuryakov]

The crash is not in WebKit though, so the best thing to do for an unreproducible issue like this is to just submit it to Apple via a problem report dialog that appears automatically.

I'm confused by the comments in the bug. Does it still occur to anyone? Can it be closed?

I just submitted this bug to Apple Bug reporter and Bug ID is # 7763102.

[Mike McNeil]

Attempted to play embedded YouTube, the video would begin and then reset after 3-6 seconds. Went to the actually YouTube video and saw exactly the same thing.

Version 5.1.2 (7534.52.7, r102536)

Flash Version: 11.1.102.55 just installed

Video worked fine in Chrome v 15.0.874.121

[Mike McNeil]

YouTube URL
http://www.youtube.com/watch?NR=1&feature=fvwp&v=RMoh5hZAaZk

[Ahmad Saleem]

NPAPI and Webkit Plugins are not supported any more. Can this be marked as "RESOLVED WONTFIX"? Thanks!

Further Youtube has now been changed to support HTML5 <video> element.

Unless, if this is related to some other system related crash then please ignore my comment. Thanks!

[Ryosuke Niwa]

YouTube videos are playing fine these days.