A friend showed me their Android phone where the following could be reproduced: searching for certain terms in Google provided a link to the relevant page under en.m.wikipedia.org, which, when clicked, first sent the browser to the relevant page, which then redirected to http://wikimediafoundation.org/wiki/Missing_wiki , which does not exist.

Given the number of cache poisoning bugs we've had in the mobile varnishes, this sequence did not surprise me. What did somewhat surprise me was that when I grepped for the relevant URL in the configuration files, I couldn't find it. But the request logs on emery confirm that this is happening very regularly, e.g.

sq61.wikimedia.org 3860736 2013-04-28T06:52:16.463 0 1.2.3.4 TCP_NEGATIVE_HIT/404 5619 GET http://wikimediafoundation.org/wiki/Missing_wiki NONE/- text/html http://www.google.com.au/search?rlz=...&ei=...&q=key+to+hunting+fox+qith+bow&oq=key+to+hunting+fox+qith+bow&gs_l=... - Mozilla/5.0%20(Linux;%20U;%20Android%204.1.2;%20en-au;%20GT-I9300%20Build/JZO54K)%20AppleWebKit/534.30%20(KHTML,%20like%20Gecko)%20Version/4.0%20Mobile%20Safari/534.30 en-AU,%20en-US -

Potentially personally identifying information has been stripped from the referrer and IP field of this log line. You can find the original data in sampled-1000.tsv.log on emery.

missing.php generates redirects to http://meta.wikimedia.org/wiki/Missing_wiki , which also appears in the logs for mobile browsers. Perhaps something is rewriting that redirect to wikimediafoundation.org.

Version: unspecified
Severity: normal