Unknown Location: crossdomain.xml when Viewing Index

I found this quite odd and it seems to happen randomly.

I just viewed my forum index and then clicked the "Currently Active Users" link. After doing so, I noticed that next to MY username, it showed the Unknown Location message and pointed to crossdomain.xml. I also noticed this for another user at another time. It seems to be random, though...sometimes showing the default "Viewing Forum Index" message. I have attached a screen shot of this weird behavior. Not sure if it has to do with vBSEO or not, though.

Does not sound like a vBSEO issue. However, I have never seen anything like that before.

I haven't seen it before either...I'll keep an eye on it and see if it persists. I was thinking perhaps something in the URL rewriting might have caused it. Today is the first day I noticed it.

I've been doing some testing and I think that, indeed, you are correct. I disabled all hooks and the problem persisted. Will take this up with Jelsoft now.

Hello Jason,

if you are using "Custom 404 handler" with vBSEO, make sure that you have thi smodification applied: Create a Custom vBulletin "404 Page Not Found" Page, and direct vBSEO to use it.

Thanks Oleg,

From what has been stated on the vBulletin forum, this is due to a flash file. Since I use Adsense, I do get the occasional flash ad.

I'll try adding the following, as suggested in that thread, to prevent vBulletin from displaying it:

Code:

define('SKIP_SESSIONCREATE', 1);

am seeing a similar message but they all look like this:

Unknown Location
/vmoods/images/none.gif

I understand that this is probably related to the vMoods add-on (these are all members who haven't selected a mood) but it only started happening recently. I did add the custom 404 but I still see this if I disable the custom 404 in the vBSEO ACP.

The answer is here: Unknown Location (Strange) - vBulletin Community Forum

Add the following line near the top of your .htaccess file:

PHP Code:

ErrorDocument 404 /404.php 


Originally Posted by jmurrayhead

From what has been stated on the vBulletin forum, this is due to a flash file. Since I use Adsense, I do get the occasional flash ad.

I'll try adding the following, as suggested in that thread, to prevent vBulletin from displaying it:

Code:

define('SKIP_SESSIONCREATE', 1);

Additional problem: If you do this, it will appear to your members that they are logged out (although in fact they are not) when the 404 page displays.

Additional problem: If you do this, it will appear to your members that they are logged (although in fact they are not) out when the 404 page displays.

If you don't have SKIP_SESSIONCREATE declaration, then vBulletin registers all not found requests and will show them in "who is online". For instance, if you have a broken image link somewhere on your style:

Unknown Location
/vmoods/images/none.gif

You should find where this image is linked from and fix the template/mod code.