IE11 - cannot drag and drop a cover image

• Type: Regression Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: Master
• Fix Version/s: 7.2.X, Master
• Component/s: Blogs, Item Selector
• Labels:
  • 7.2-could
  • QA-V
  • front-end
  • frontend
• Story Points: 1
• Fix Priority: 3
• Sprint: 034 - Nidoking
• QA Test Name:
  • BLOGS_01_-_Cover_Image_can_be_drag_&_dropped_
• QA Test Score: 4

Steps to reproduce:

1. Start portal on Internet Explorer 11
2. Add a blog entry
3. Drag and drop an image to the cover image file uploader

Expected results
Image is successfully dragged and dropped to the uploader

Actual results: Image is not added

SCRIPT5007: Unable to get property 'substring' of undefined or null reference

Reproduced on:
Tomcat 9.0.6 + MySQL 5.7
Portal master GIT ID: 0ec72222807cda84f2afa0094629ef9395db2387
IE 11