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 Topic: HTML5 media loading sometimes suspends or aborts |
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Hitmark7
Joined: 28 Aug 2014
Posts: 3
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 Posted: Fri 29 Aug '14 19:28 Post subject: HTML5 media loading sometimes suspends or aborts |
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Recently, some code on a web application that has been working fine for months started to run unexpectedly. That code is just a media files loading JavaScript function, that uses jQuery. It's pretty long, but in essence it is like this:
| Code: | var $audio=$('<audio>');
$audio.on('canplaythrough',function(e){
$audio[0].play();
});
$audio.attr('src','song.ogg'); |
Basically, the file only loads sometimes, and sometimes stops loading with a suspend or even an abort event.
I have uploaded a little testing HTML to http://www.joanbotella.com/tests/loading , where you can see what's happening. You can download the test files from http://www.joanbotella.com/tests/loading/loadingTest.zip for local testing.
I have just checked that opening the test index.html file directly into Firefox, and not through my localhost Apache server, makes the audio files perfectly playable. So, I assume, my hosting and I have the Apache server misconfigured for serving media files.
My software versions are: Linux Mint 13, Apache 2.2.22-1ubuntu1.7 , Mozilla Firefox 31.0 , Chromium 36.0.1985.125 and jQuery 1.11.0.
My Apache server configuration is very basic. I have just installed the package, alongside the php mod, and modified very little on the conf file. I think the problem is not related to my specific configuration, and many other people would be able to reproduce it on they own.
I have checked the Apache error.log after a suspended loading, but nothing was added to it. Any extra info you would need for helping me, please, ask for it.
Could you help me? Thanks in advance! |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Mon 01 Sep '14 11:33 Post subject: |
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Only for the directory these files are served from, try adding:
EnableSendfile On |
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Hitmark7
Joined: 28 Aug 2014
Posts: 3
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| Posted: Wed 03 Sep '14 22:50 Post subject: |
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I have done as you said, on my global .conf first, and then on a .htaccess, but nothing worked. I have restarted the service after each change, of course.
The official Apache documentation at http://httpd.apache.org/docs/2.2/mod/core.html#enablesendfile says that the default value for that directive is On, so I have tried also setting it off. Nothing changes.
Have you been able to reproduce the problem? |
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glsmith
Moderator
Joined: 16 Oct 2007
Posts: 2268
Location: Sun Diego, USA
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| Posted: Thu 04 Sep '14 22:21 Post subject: |
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Yes/No
Different browsers (IE & FF tested) have different success rates.
2.2.29 Win32 vs. 2.2.24 Unix also have different success rates.
IE never wavered, it does not do ogg file but for island.mp3 it never failed.
I think it's the browser. With Firefox changing all the time, I think I would point at it as being the culprit in my testing and how it deals with the jquery as a simple html5 audio tag never failed on it. |
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Hitmark7
Joined: 28 Aug 2014
Posts: 3
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| Posted: Mon 08 Sep '14 21:48 Post subject: |
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I've been running the test on several browsers on a Wampserver 2.5 , on a Windows Vista:
Internet Explorer 9.0.8112 : The mp3 always plays.
Chrome 37.0.2062.103 : It plays everything, flawless.
Firefox 32 : Random results, as the Linux version.
Opera 24 : The ogg always plays.
Safari 5.1.7 : The mp3 always plays.
I think you are right, and Apache is not the responsible of this behaviour.
Please, keep me posted if you test on other systems and configurations.
Thanks. |
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