Tests interception blocking, modification of network fetches. Test started Network agent enabled Request interception enabled Page agent enabled Runtime agent enabled Network.requestIntercepted ID 1 GET resource-iframe.html type: Document allowRequest ID 1 Network.responseReceived resource-iframe.html 200 text/html Network.requestIntercepted ID 2 GET i-dont-exist.css type: Stylesheet modifyRequest ID 2: url i-dont-exist.css -> test.css Network.responseReceived i-dont-exist.css 200 text/css Network.requestIntercepted ID 3 GET script.js type: Script blockRequest ID 3 ConnectionFailed Network.loadingFailed script.js net::ERR_CONNECTION_FAILED Network.requestIntercepted ID 4 GET script2.js type: Script mockResponse ID 4 Network.responseReceived script2.js 200 application/javascript Network.requestIntercepted ID 5 POST post-echo.pl type: XHR allowRequest ID 5 Network.responseReceived post-echo.pl 200 text/plain Page.frameStoppedLoading Hello from the mock resource Post - ECHO SUCCESS!