Tests modifying a GET into a POST. Test started Network agent enabled Request interception enabled Page agent enabled Runtime agent enabled Network.requestIntercepted ID 1 GET redirect-iframe.html type: Document allowRequest ID 1 Network.responseReceived redirect-iframe.html 200 text/html Network.requestIntercepted ID 2 GET redirect1.pl type: Script modifyRequest ID 2: url redirect1.pl -> post-echo.pl; method "GET" -> "POST"; postData undefined -> "console.log('POST MODIFICATION SUCCESS!');" Network.responseReceived redirect1.pl 200 text/plain Page.frameStoppedLoading POST MODIFICATION SUCCESS!