Issue 4864 - Start using ESLint for adblockpluschrome

lib/csp.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 33 matching lines @@
         //
         // We also need the frame-src and object-src restrictions since CSPs
         // are not inherited from the parent for documents with data: and blob:
         // URLs, see https://crbug.com/513860.
         //
         // We must use the deprecated child-src directive instead of worker-src
         // since that's not supported yet (as of Chrome 56.)
         //
         // "http:" also includes "https:" implictly.
         // https://www.chromestatus.com/feature/6653486812889088
-        value: "connect-src http:; child-src http:; frame-src http:; object-src http:"
+        value: "connect-src http:; child-src http:; " +
+               "frame-src http:; object-src http:"
       });
       return {responseHeaders: details.responseHeaders};
     }
   }, {
     urls: ["http://*/*", "https://*/*"],
     // We must also intercept script requests since otherwise Web Workers can
     // be abused to execute scripts for which our Content Security Policy
     // won't be injected.
     // https://github.com/gorhill/uBO-Extra/issues/19
     types: ["main_frame", "sub_frame", "script"]
   }, ["blocking", "responseHeaders"]);
 }