WebResource.axd not loaded when using latest Google Chrome Browser

I'm having a strange issue:

I can't login at http://maskatel.info/login, when I try to click the login button (the blue button that says Connexion), nothing happens at all.

So I opened up the developer tools in Chrome (f12) and saw the following JavaScript error every time I click the button: Uncaught ReferenceError: WebForm_PostBackOptions

I then found out that this function should be in WebResource.axd, I then went to the Resources tab in the developers tool and found out that this 'file' is not there and it is not loaded in the HTML source.

I tried a lot of different things without any success and finally tried another browser and it works fine in any other browsers. That same page was working perfectly previously in Chrome on the same computer in the past.

So then I tried to click the small gear in the Chrome developer tools and went to the overrides section and changed the UserAgent to something else and refreshed the page and it works perfectly with any other UserAgent string. The correct UserAgent when not overridden for my browser is Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.57 Safari/537.36

So right now I really don't know what to do next:

• Is this issue related to the latest version of Chrome? I have not found any information on release dates for chrome.
• It could also be a DotNetNuke problem but I doubt it since nothing there changed before and after the problem
• It could also be asp.net related (I renamed App_Browsers to App_Browsers2 and still no luck.

Any help would be appreciated.

A data file which addresses this issue is available to download from the following url.

http://51degrees.mobi/portals/0/downloads/51Degrees.mobi-Premium-20130823.dat

.NET users will need to perform the following steps.

1. Download the above data file.
2. Replace the file 51Degrees.mobi-Premium.dat in the App_Data folder of the web site with the data file downloaded, renaming the downloaded data file to 51Degrees.mobi-Premium.dat
3. Restart the application pool servicing the web site to apply the new data file.

Some configurations may place the 51Degrees.mobi-Premium.dat file in a location other than App_Data. The web sites current location can be found in the 51Degrees.mobi.config file found in either the web site’s root folder or the App_Data folder. See the following page for more details.

https://51degrees.mobi/Support/Documentation/NET/WebApplications/Config/Detection.aspx

Please use contact us if you have any issues deploying this data file.