Disable background networking noise in Chrome

This avoids the annoying DNS lookups, but also various other
requests which create extra traffic you don't want. There are
reports (Cypress) that it once caused issues with XHR delays
(many years ago) but it's on by default for Puppeteer,
TestCafe & others, so I suspect it's fine nowadays.

Author: pimterry

src/interceptors/chromium-based-interceptors.ts

@@ -45,7 +45,9 @@ const getChromiumLaunchOptions = async (
         ],
         options: [
             // Trust our CA certificate's fingerprint:
-            `--ignore-certificate-errors-spki-list=${spkiFingerprint}`
+            `--ignore-certificate-errors-spki-list=${spkiFingerprint}`,
+            // Avoid annoying extra network noise:
+            '--disable-background-networking'
         ]
     };
 }