The form being submitted does have a file being uploaded. I've removed the ContentType from the .net code and now that works just fine.
Can anyone explain why this behaviour occurred? It worked fine in IE - but not FF. Normally I'd expect things the other way around! Thanks for the advice. John On Feb 6, 3:55 pm, "Mike Alsup" <[EMAIL PROTECTED]> wrote: > > Mike, does the form plugin ever use hidden iFrames, perhaps in upload > > forms? > > Yes, good point, Diego. This probably would happen if there is a file being > uploaded. Removing the ContentType header would solve the problem.
