Our company wiki has been working for years and has been updated to 1.26.3 a few months ago without problems. A few weeks ago it started downloading some pages instead of rendering them.
If the search term does not match the title of a page, the search result page is shown and clicking on one of the search result items works well.
If the search term matches the title of a page, pressing enter or clicking on the page title shown at the top of the list, downloads the page instead of showing it. Clicking on the
Containing... link below the page name, then the search result page is shown and everything works well.
Save page button after editing a page, the page will be downloaded. Canceling the download and clicking the
Read link shows the page with the last editing properly saved.
The downloaded file is called
index.php, it starts with the following text and has some binary data after that (I assume that's the compressed page content). I don't understand why there are the first two lines:
HTTP/1.1 200 OK
Date: Mon, 05 Dec 2016 17:16:45 GMT
Content-Type: text/html; charset=UTF-8
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: private, must-revalidate, max-age=0
Last-Modified: Mon, 05 Dec 2016 17:16:44 GMT
Here is the versions: