Requests to URL with length greater than 3776 characters return with status code 400
Petur
1
Reputation point
Hi,
whenever our request URL exceeds the length of 3776 characters, the Application Gateway returns HTTP status code 400 (we know it's the Application Gateway returning since the same requests return fine when not going through the Application Gateway). According to answer to this question, it should currently support up to 8k characters. Is there a settings we need to change to support these long URLs? Tried both versions of the Application Gateway, same result. Diagnostic logs of the Application Gateway don't show why the result was 400, only that it was 400.
Thanks.
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