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Temporary 404 page in Joomla
Page does exist and can be browsed to
batface




msg:4337306
 6:12 am on Jul 9, 2011 (gmt 0)

Hi,

I have seen a strange series of events on a Joomla site and wonder if anyone else has seen this or knows of a solution.

Looking at a sites stats it is throwing up a awful lot of 404s. There were issues and the majority of issues were fixed using 301 rewrites, but the stats are still high.

Then I noticed something strange while playing around with a Xenu report. I click on a random link (it is a valid URL) and it returns a 404. It doesn't matter where the link comes from, put it in the browser address bar and get a 404. Refresh the page again and again over a period of time still a 404.

In another browser tab go to the website main URL and then drill down through the directory structure and find the page in question. It is there and valid, no error.

Both URLs are identical.

If I now go back into the browser tab with the 404 page and refresh I now get the correct page displayed!

Any ideas what could be happening here? I was wondering if it was some kind of strange indexing issue in the MySQL database?

thanks,
Mick

 

lucy24




msg:4337314
 7:16 am on Jul 9, 2011 (gmt 0)

I click on a random link (it is a valid URL) and it returns a 404. It doesn't matter where the link comes from, put it in the browser address bar and get a 404. Refresh the page again and again over a period of time still a 404.

In another browser tab go to the website main URL and then drill down through the directory structure and find the page in question. It is there and valid, no error.

Both URLs are identical.

If I now go back into the browser tab with the 404 page and refresh I now get the correct page displayed!

Here is another analogy to contemplate.

Have you ever seen a Forums post (not here, but in forums that allow image posting) where there was supposed to be a picture, but instead everyone sees some form of "you can't do that" message from the image host? The person who put up the original post has no idea this is happening; the image comes through loud and clear for them. If you are curious enough to go to the site where the image lives, starting on the front page, and navigate through the links, you eventually get to the picture, clear as day. Now refresh the Forums page and the picture jumps into view.

It refreshes because it is now a matter of record, via a cookie or some other means, that you obtained this image by Authorized Means and are therefore allowed to reload it.

What you're seeing might be the identical behavior. You just need to figure out what's triggering it.

batface




msg:4337343
 10:04 am on Jul 9, 2011 (gmt 0)

Thanks for the reply. This is useful information and i'll pass it on to the development guy as it gives him something to think about.

g1smd




msg:4337509
 9:15 pm on Jul 9, 2011 (gmt 0)

The Live HTTP Headers extension for Firefox will be your friend. Use it to see what is going on.

lostdreamer




msg:4356291
 2:42 pm on Aug 29, 2011 (gmt 0)

Also: A lot of Joomla sites use some form of SEO plugin to create nice URLs.

Some of them will create a table with valid URLs while browsing pages, so clicking on any link will be no problem, but when you copy paste one of these links to your browser after doing a cleanup in the SEO plugin, it will give you a 404 (since it hasnt setup that URL yet)

Very annoying.....

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