fix(helpers): allow usage in ES6 modules fix for showdownjs#676

* Fix for issue showdownjs#676 This will check for situations when this is undefined, eg ES6 module wrapper Co-authored-by: SyntaxRules <[email protected]>
cwj3000 · Dec 23, 2021 · ed51972 · ed51972
1 parent 41cee10
commit ed51972
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/src/helpers.js b/src/helpers.js
@@ -6,11 +6,15 @@ if (!showdown.hasOwnProperty('helper')) {
   showdown.helper = {};
 }
 
-if (typeof this.document === 'undefined' && typeof this.window === 'undefined') {
-  var jsdom = require('jsdom');
-  this.window = new jsdom.JSDOM('', {}).window; // jshint ignore:line
+if (typeof this === 'undefined' && typeof window !== 'undefined') {
+  showdown.helper.document = window.document;
+} else {
+  if (typeof this.document === 'undefined' && typeof this.window === 'undefined') {
+    var jsdom = require('jsdom');
+    this.window = new jsdom.JSDOM('', {}).window; // jshint ignore:line
+  }
+  showdown.helper.document = this.window.document;
 }
-showdown.helper.document = this.window.document;
 
 /**
  * Check if var is string