webconnectivity@v0.5: handle successful https chains (#960)

This diff includes a rule to recover from the "measurement failed" state that kicks in when we have a chain of successful redirects from the client side leading to a webpage _and_ any URL in the chain uses HTTPS. See https://github.com/ooni/probe/issues/2307.

While there, fix `i/e/w/iox.go` to avoid triggering the `./script/nocopyreadall.bash` script.

.vscode/settings.json

@@ -5,5 +5,6 @@
             "-GOCACHE",
             "-GOPATH"
         ]
-    }
+    },
+    "C_Cpp.default.configurationProvider": "ms-vscode.makefile-tools"
 }