Problem with Flash file uploading

Report · Oct 28, 2012

Specifications:

Windows 7 32-bit
Firefox 15.0.1, Chromium 22.0.1250.0 and Internet Explorer 7
Adobe Flash Player 11.4.402.287

Problem:

Hi everyone.

I'm a frequent user of file hosting services. They usually offer a Flash file uploader to upload your files.

Using the Flash file uploader, I always encountered error and the file will fail to upload.

Example sites that produces the error are SugarSync and Dropbox.

SugarSync simply fails to upload and report it as a failure.

Dropbox reports "Sorry, it looks like the advanced uploader is incompatible with your system. Please use the basic uploader to upload via the website".

The problem happens in both Firefox and Chromium, but not Internet Explorer.

The file uploads without any error in Internet Explorer.

Considering how it happens on two different browsers, I assume that there are no problems with the browsers.

Methods tried:

Reinstalled browsers.
Turned off Protected Mode in mms.cfg.
Fallback to Flash 11.2, 10.3.
Downloaded the Flash Player Uninstaller and performed a complete uninstallation. Then reinstalled the latest version of Flash Player.

None of them work, and at the moment, I have the latest Adobe Flash Player.

Thank you in advance for your time and help.

EDIT:

In case you are wondering, there are no problems with Flash games and YouTube videos.

Message was edited by: lancersupraskyline

Report · Nov 21, 2012

On my website, I also make use of Flash to upload and for some of my users, it is not working... The server upload servlet is called but the file sent has a size of 0.

Report · Nov 27, 2012

@lancersupraskyline - Do you have any security software (antivirus/firewall) that might be blocking the network connection?

@fatpaint - Is this new behavior that your users are seeing?

Report · Nov 27, 2012

This is not new behavior. I have been seeing this problem on my log files for a long time and it is still there.

The problem happens in my graphic editor af http://Fatpaint.com when inserting an image from the local computer. I had to implement a html uploader as backup because people were complaining. I have not been able to reproduce the error.

I use Flash 8 actionscript 2.

My upload servlet get the request from User-agent "Shockwave Flash" but the stream received has no data (length is zero). There is no problem when using the html uploader. I use "org.apache.commons.fileupload" java lib, so it is not a problem with my servlet.

Report · Nov 27, 2012

@Chris:

Not that I know of. I am using Microsoft Security Essentials and Windows Firewall. I do not usually change the settings of the Firewall, so I do not see how it affects the problem. Using the same settings before, uploading with Flash has never been a problem.

Regardless, I do think something went wrong inside, and I do plan to reformat the computer anyways.

Thank you for your reply.

Report · Nov 29, 2012

@fatpaint and lancersupraskyline (if you're interested) - Could you open a new bug on this over at bugbae.adobe.com and let me know the bug number? I'll follow up internally.

Report · Dec 06, 2012

@Chris Campbell - I have opened a bug report with number 3397309

https://bugbase.adobe.com/index.cfm?event=bug&id=3397309