Issues with components over Sonicwall VPN

[csimpson1971]

I have used the Telerik controls at our college for a number of years with great success. However, there has always been an issue with using some of the controls over our Sonicwall VPN which is now causing a problem.

I downloaded the latest trial version yesterday to see if this issue had been rectified but it hadn't.

There are a couple of controls which seem to be affected:

RadComboBox
This does not seem to work at all over the Sonicwall VPN. The control is displayed but on clicking on the item nothing happens. The Javascript error Object doesn't support this property or method is given (Telerik.Web.UI.WebResource.axd) Code:0 Line: 8950 Char: 1. I just dropped a ComboBox onto a page and hard coded some options in to keep everything as simple as possible.

RadGrid
The grid displayed as expected. However, when paging appeared or was selected to be used the same error appeared.

Has anybody else had similar issues, and how can I get round the problem?

[Genady Sergeev]

Hello,

Opening the page over VPN should not have an impact on the loaded scripts at all. However, it seems tht there is something we are missing. As a troubleshoot measure, could you try running your website in debug mode (so that the debug scripts are loaded) and send us a screenshot of the exact code that throws the error. This will give us a better insight on what is going wrong.


Kind regards,
Genady Sergeev
the Telerik team

[csimpson1971]

Hi

The exact line that is causing the problem is:

line 2490
this._element.src=sw_httprp_rewrite_url("javascript:'';");

Hopefully this will help
Thanks

[csimpson1971]

Hi

The exact line that is causing the problem is:

line 2490
this._element.src=sw_httprp_rewrite_url("javascript:'';");

Hopefully this will help
Thanks

[Genady Sergeev]

Hi ,

Thanks for the snippet. This indeed looks like code of ours, however, it seems modified. More specifically, the sw_httprp_rewrite_url seems to be some how injected in our code. This is how the same line looks in our trunk:

this._element.src = "javascript:'';";

It seems that the sonic wall VPN is modifying the JavaScript on the page. I suggest that you contact the sonic wall guys and ask them what is the sw_httprp_rewrite_url function doing and why it is throwing errors.
 
Best wishes,
Genady Sergeev
the Telerik team

[Jay]

I'm having similar issues with Telerik and Sonicwall. 

Basically, the page renders to a point, but fails to completely load and all controls are not usable.  Its as if the page just stops loading and it does appear to be javascript related.

Also its about a year later from this thread so any solutions discovered in the meantime?

[Genady Sergeev]

Hi Jay,

Unfortunately we don't have any further progress on the issue. What is happening is that the sonicwall vpn is rewriting the JavaScript on the page and as a result some of our controls fail to work. I suggest that you get in touch with the sonic wall guys and ask them what is that rewriter doing.

All the best,
Genady Sergeev
the Telerik team

[Bobby]

Hi,

I also found that your grid doesn't work over Cisco VPN. 

Is this a known problem?

Thanks
Bobby

[Ian]

I've just got around this problem. On the Sonicwall device, under the application offloader settings, make sure Enable URL Rewriting for self-referenced URLs is unchecked. We also had to publish the application from the root of the web site under IIS, working from a sub virtual directory it still wouldn't work. For example, the application needs to be published as www.website.com/ rather than www.website.com/applicationname.

The second element may have been a referencing issue however it was only problematic when accessed through the Sonicwall SSLVPN in certain browsers (Sonicwall SRA appliance and IE8 in my case)

[Genady Sergeev]

Hi Ian,

Thanks for sharing this feedback with the community. I've updated your Teleirk points as a token of gratitude.

Regards,
Genady Sergeev
Telerik

[Bobby]

Hi,

I am using Cisco VPN and I am also having the issue.

My pages using RadGrid is not displaying properly.

Thanks

[Bobby]

I upgraded to visual studio 2013 and started using cisco VPN together, so I thought the problem might be because of VPN.

But I was wrong and we need to add the following line to the web.config

<add key="vs:EnableBrowserLink" value="false" />

For further reading refer

http://stackoverflow.com/questions/19513631/radgrid-rendering-differently-in-different-machine-of-100-same-application-when

Thanks
Bobby