Module not showing up correctly in Firefox

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Last Post 10/28/2011 3:38 PM by Peter Donker. 9 Replies.

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larry mattox

New Member
Posts:1

10/03/2011 10:51 PM
I'm using Document Exchange 5.3.9 and DNN 5.6.1 and I am having problems with how the module is displaying in Firefox. It happens on all computers using Firefox. It is like the module isn't receiving any CSS.

Peter Donker

Veteran Member
Posts:4536

10/05/2011 11:50 AM
Try disabling the urlscan on IIS.

Peter Donker

Veteran Member
Posts:4536

10/05/2011 1:30 PM
See also this page about tuning urlscan: http://support.microsoft.com/kb/326444 Peter

Peter Donker

Veteran Member
Posts:4536

10/05/2011 1:36 PM
Sorry ... forgot to mention: the snag is that due to an error in DNN the page asks for the css with a backslash in the path (DesktopModules/Bring2mind\DMX/module.css). The backslash is apparently not liked by urlscan. Some browsers already convert the backslash to forward slash before asking for the css. You'll see the backslash encoded as %5C when you look at the traffic with Fiddler, by the way.

Leith Tussing

New Member
Posts:30

10/21/2011 4:53 PM
We're experiencing this issue as well (but in reverse actually FF looks fine but IE does not) and we also run URLScan on our servers. It's not logging that it's blocking any content though. Do you know what specifically we can tune in URLScan to allow this behavior to test if it is the issue? For our environment removing URLScan is not an option.

Rob Ralston

Basic Member
Posts:164

10/21/2011 5:32 PM
Leith, I have been using URLScan for many years. If your urlscan log is not showing a blocked url with that character, I doubt URLscan is the issue. However, for testing purposes, it is located in the urlscan.ini in this section: [DenyUrlSequences] \ ; Don't allow backslashes in URL Just put a semicolon in front to disable this check, then issue an IISreset to ensure the modified ini is read and used. ;\ ; Don't allow backslashes in URL Rob Ralston SilverBullet Technologies LLC

Leith Tussing

New Member
Posts:30

10/24/2011 5:49 PM
I put the ; in front of the \ and rebooted the server since I had patches pending. It still seems to be messing up under IE but FF is working good.

Peter Donker

Veteran Member
Posts:4536

10/24/2011 8:56 PM
I've been told urlscan in IIS can also upset matters. It will refuse the backslash in the url. Peter

Leith Tussing

New Member
Posts:30

10/25/2011 2:18 PM
Unfortunately we do not have any servers without URLScan installed and I've also attempted setting URLScan to allow the backslash per Rob's comment above. With DNN 5.x we could go in the database and manually change the \ to a / and everything would work. However with a newly upgraded DNN 5.x to 6.0.2 this trick no longer works.

Peter Donker

Veteran Member
Posts:4536

10/28/2011 3:38 PM
You can do that but you absolutely must remember to set it back when you upgrade or DNN thinks the upgrade is a new module. In general renaming the module name is extremely risky as you'll break the installation if you install an upgrade (the SQL scripts will begin to run and may wreck your data). Peter

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