We have some clients who, upon attempting to submit a form, are recieving the error – “HTTP Status 501 Method OST is not defined in RFC 2068 and is not supported by the Servlet API” being thrown by Apache Tomcat/6.0.29.. Apparently, this error is only being received by users running Firefox on Windows 7.
After a lot of digging, the vast majority of examples of Method = “OST” that I can find are on Chinese language websites.. Like here.. In This discussion (English language) “Quoted Printable Transfer Encoding” was mentioned as the possible cause of a similar problem, but it does not involve Apache Tomcat, or any particular browser/operating system combination.
I have a feeling that this issue is something to do with encoding, but have little experience relating to this.. Has anyone experienced a similar issue, or perhaps have some suggestions as to how I might go about solving it?
Thanks
It may be useful to have a look at the following known and recorded defect in Mozilla Firefox:
https://bugzilla.mozilla.org/show_bug.cgi?id=723805
This seems relevant to your problem, and it may shed some light on how you could do things a bit differently to avoid it.