AB testing does not generate thumbnails on IE11, FireFox

Found in

EPiServer.Marketing.Testing 2.4.1

Fixed in

EPiServer.Marketing.Testing 2.4.4

Created

Sep 12 2017

Updated

Nov 13 2017

State

Closed, Fixed and tested


Description

A/B testing does not generate thumbnails on IE11 or FireFox. It works with Chrome only.

Step to reproduce

#Create an A/B test for a page with images.

Expected: It should generate thumbnails on IE11, FireFox.
Actual: Only generates thumbnails in the Chrome browser.