exceptions thrown in plugins are now properly caught in libresilientFetch (ref. #36)

service-worker.js

@@ -1026,6 +1026,10 @@ let initFromRequest = (req) => {
  * reqInfo   - instance of LibResilientResourceInfo
  */
 let libresilientFetch = (plugin, url, init, reqInfo) => {
+    // we really need to catch any exceptions here
+    // otherwise other plugins will not run!
+    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/catch#gotchas_when_throwing_errors
+    try {
         // status of the plugin
         reqInfo.update({
             method: (plugin && "name" in plugin) ? plugin.name : "unknown",
@@ -1068,6 +1072,9 @@ let libresilientFetch = (plugin, url, init, reqInfo) => {
                     fetch_promise,
                     timeout_promise
                 ]);
+    } catch(e) {
+        return Promise.reject(e)
+    }
 }