https://issues.apache.org/bugzilla/show_bug.cgi?id=49591
--- Comment #2 from km...@autonomy.com 2010-09-23 12:33:12 EDT --- Flushing the error response as soon as possible sounds desirable, but after giving it some thought, the response still can't be flushed until the JSP has flushed at least once (explicitly or due to end of page), in order to allow the JSP to set headers (as required by the JSP specification: version 2.2, section JSP 11.3, Buffering). So in the case that the response is complete, flushing the headers immediately is simply an extra flush (the data should already be in the buffer). Agreed this isn't actually a problem, and doesn't need to be fixed. I just think it would be nice. :-) I can see how it might get complicated, though. To provide some context, the reason I initially reported this is because I ran into an issue with Internet Explorer's "friendly error page" feature. Internet Explorer will display a friendly error page if the error response body is under a certain number of bytes (512 or so by default, I think). The interesting part is that if the response body is chunked, it doesn't wait for the entire response body to arrive; it decides as soon as it has any part of the response body. So if you have a very short first chunk, and the next chunk arrives in a later network packet, it'll assume the response is actually under the limit, and display the friendly error page. (However, it does combine chunks that arrive in the same packets; I'm guessing it runs the check immediately after the first read() or whatever.) This sorta makes sense, since a chunked response is unbounded in size, although I'm still a bit dubious as to the rationale. Anyway, this IE-specific behavior is easy enough to work around simply by ensuring the first chunk is large enough. (My application was flushing very frequently, resulting in lots of small chunks. The behavior was sensitive to network latency, so it was a bit of pain to track down.) I just reported this because I was surprised to still see a single chunk body for errors (but not non-errors), even after I had eliminated all the explicit flushes. -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
