CONSOLE MESSAGE: line 13: Post - ECHO SUCCESS!
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
allowRequest ID 1
Network.responseReceived resource-iframe.html 200 text/html
Network.requestIntercepted ID 2 GET i-dont-exist.css
Network.responseReceived i-dont-exist.css 404 text/html
Network.loadingFailed i-dont-exist.css 
Network.requestIntercepted ID 3 GET script.js
Network.responseReceived script.js 404 text/html
Network.loadingFailed script.js 
Network.requestIntercepted ID 4 GET script2.js
----- disableRequestInterception -----
Network.responseReceived script2.js 404 text/html
Network.loadingFailed script2.js 
Page.frameStoppedLoading
Network.responseReceived post-echo.pl 200 text/plain