Added one more try/catch wrapper to normalizer, for safety

lib/common/utils.js

@@ -181,7 +181,14 @@ function normalizeLink(url) {
 
   // Encoder throws exception on broken surrogate pairs.
   // Fix those first.
-  return encodeURI(fixBrokenSurrogates(normalized));
+
+  try {
+    return encodeURI(fixBrokenSurrogates(normalized));
+  } catch (__) {
+    // This should never happen and left for safety only.
+    /*istanbul ignore next*/
+    return '';
+  }
 }
 
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