fix(Network): Do not attempt to normalize malformed URLs. (#875)

This patch avoids throwing 'url malformed' error during generating
request hash for request interception.

Fixes #869.

lib/NetworkManager.js

@@ -394,9 +394,16 @@ helper.tracePublicAPI(Response);
  * @return {string}
  */
 function generateRequestHash(request) {
-  const hash = {
+  let normalizedURL = request.url;
+  try {
     // Decoding is necessary to normalize URLs. @see crbug.com/759388
-    url: decodeURI(request.url),
+    // The method will throw if the URL is malformed. In this case,
+    // consider URL to be normalized as-is.
+    normalizedURL = decodeURI(request.url);
+  } catch (e) {
+  }
+  const hash = {
+    url: normalizedURL,
     method: request.method,
     postData: request.postData,
     headers: {},