FIX: only prevent clicks on links in the preview

app/assets/javascripts/discourse/components/d-editor.js.es6

@@ -211,8 +211,10 @@ export default Ember.Component.extend({
 
     // disable clicking on links in the preview
     this.$('.d-editor-preview').on('click.preview', e => {
+      if ($(e.target).is("a")) {
         e.preventDefault();
         return false;
+      }
     });
 
     this.appEvents.on('composer:insert-text', text => this._addText(this._getSelected(), text));