export PLUGIN_NAME and import it in fetchContentFromAlternativeEndpoints

plugins/alt-fetch/index.js

@@ -12,7 +12,7 @@ import { fetchContentFromAlternativeEndpoints } from "./lib/fetchContentFromAlte
  *         the polyfill is implemented in LibResilient's service-worker.js
  */
 
-const PLUGIN_NAME = 'alt-fetch';
+export const PLUGIN_NAME = 'alt-fetch';
 
 const LRPC = self.libResilientPluginConstructors;
 

plugins/alt-fetch/lib/fetchContentFromAlternativeEndpoints.js

@@ -1,3 +1,5 @@
+import { PLUGIN_NAME } from "../index";
+
 export function fetchContentFromAlternativeEndpoints (url, init = {}, config) {
   // remove the https://original.domain/ bit to get the relative path
   // TODO: this assumes that URLs we handle are always relative to the root