Boris Zbarsky wrote:
Aaron Reed wrote:
Currently I build a channel and if it is just a http channel I request
the head otherwise I'll request the whole thing.
If that level of pinging is ok for you, see nsIURIChecker.idl.
Note, however, that HEAD requests are broken on a lot of servers. If
you seriously rely on this to be correct out on the interweb, then
you're kinda screwed if you want to use HEAD requests.
-Boris
Thanks for the quick response! Ok, if I want to be conscientious and
not just do a simple ping (due to the HEAD issues you brought up), I'll
run into the problem that I mentioned earlier where my OnStopRequest is
getting a status code back with NS_ERROR_UNEXPECTED (due to the fact
that we don't read anything during OnDataAvailable). Do you know any
efficient way around this since we aren't really concerned with what
comes back, just whether we got an error or not? Having to read in the
data just to forget it seems like a waste. But we don't want to
remember the data since we could have a lot of these on our page and
they don't get triggered all that often (just when the user asks for
help, for example). We tried seeking to the end using the
nsISeekableStream interface, but that didn't work.
Any ideas welcome,
--Aaron
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