Vaguely related (?) Last night I was suddenly unable to continue on a site with log-in, however I tried. Cleared the cookies, rebooted, same problem. "Bad Request
Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit."

It was banking, so I checked and they have no problems: it's my browser. It may be intermittent, I was told, use a different one.

That's the last thing I want to do, as Opera works well with almost everything.