I'm currently having issues with MWG loading the dropbox website and was wondering if anyone else is experiencing the same issue. When I try to access dropbox using Internet Explorer 11 the dropbox page won’t load properly. None of my files I've uploaded in the past shows up. The page only works when I disable my proxy settings in IE. I've tried whitelisting the dropbox url and disabling all the rules in the MWG which did not fix the issue. I've also ran a rule trace which doesn't show anything being blocked.
However when I enabled debugging in IE, I got a webpage error popup stating:
I've been troubleshooting this issue on MWG 18.104.22.168 and 22.214.171.124 with the same results.
Okay. I made a quick check with my lab PC (Windows 7, IE 11) but I didn't see any trouble so I cannot exactly tell what went wrong, unfortunately.
The only indicator we currently have is that IE fails to process some Java Script. I used MWG and played around with the settings trying to replicate the problem, but I was unable to. I am able to login to the Dropbox website, upload some files and see them afterwards. The problem might be related to a configuration in your MWG.
It would be helpful if we could find out what script exactly causes the error. If you run IE you can start the "developer console" by pressing F12. There is a tabl called "console" which can list all errors that happen when loading a site. It also helps to reveal the exact URL of the script that failed to load. Maybe you can try if this help identifying the exact script causing problems?
Otherwise you may want to file a service request with support and provide an exact error description. They might be able to provide some more ideas to find the problem and solve it. Nevertheless if you can give me some more details about the problem I am happy to help.
Upon further investigation, it looks like our .pac file was causing the problem. After removing isInNet(hostip, "127.0.0.1", "255.255.255.255") in our .pac file, dropbox loaded properly.