Don't use jsdom private API features to get global properties

Before we were manually grabbing `window._core` which was a bit of a hack. This sets the correct settings to allow us to get all globals with `Object.getOwnPropertyNames(window)`. We also need to clone the settings object before passing it to jsdom otherwise it tacks loads of stuff on to the referenced object.
8 years ago · f6b5e9ff3b
1 changed files with 18 additions and 12 deletions
--- a/src/index.js
+++ b/src/index.js
@ -1,16 +1,19 @@
-import { jsdom } from 'jsdom';
+import jsdom from 'jsdom';

-function getWindowPropertyKeys(window) {
-  return Object
-    .keys(window)
-    .concat(Object.keys(window._core))
-    .filter(prop => prop.substring(0, 1) !== '_');
+const defaultJsdomConfig = {
+  features: {
+    FetchExternalResources: false,
+    ProcessExternalResources: false
  }
+};
+
+const cloneObject = obj => JSON.parse(JSON.stringify(obj));

 const protectedproperties = (() => {
-  const window = jsdom('<html><body></body></html>').defaultView;
+  const window = jsdom.jsdom('<html><body></body></html>', cloneObject(defaultJsdomConfig)).defaultView;

-  return getWindowPropertyKeys(window)
+  return Object
+    .getOwnPropertyNames(window)
    .filter(prop => global[prop]);
 })();

@ -18,11 +21,14 @@ const getType = val => Object.prototype.toString.call(val);

 module.exports = (...args) => {
  const properties = args.filter(arg => getType(arg) === '[object Array]')[0];
-  const jsdomConfig = args.filter(arg => getType(arg) === '[object Object]')[0];
+  const userJsdomConfig = args.filter(arg => getType(arg) === '[object Object]')[0];
+
+  const jsdomConfig = Object.assign({}, userJsdomConfig, defaultJsdomConfig);

-  const window = jsdom('<html><body></body></html>', jsdomConfig).defaultView;
+  const window = jsdom.jsdom('<html><body></body></html>', cloneObject(jsdomConfig)).defaultView;

-  getWindowPropertyKeys(window)
+  Object
+    .getOwnPropertyNames(window)
    .filter(prop => protectedproperties.indexOf(prop) === -1)
    .filter(prop => !(properties && properties.indexOf(prop) === -1))
    .forEach(prop => global[prop] = window[prop]);