MS Edge goes to a preview of the attachment when "show as link" is selected in the Confluence editor

Summary

In edit mode if you click "Show as Link" for an attachment 

Environment

• MS Edge 16
• Confluence 6.5 or 6.6

Steps to Reproduce

1. Edit a page with an attachment which is displayed as a thumbnail
2. Click the "Show as Link" button
   

Expected Results

The attachment will be displayed as a link.

Actual Results

Confluence displays a preview of the attachment in a hung state - only refreshing the browser will restore editing or viewing.

Notes

This was reported on the Atlassian online Community

Workaround

Refresh MS Edge when the preview is being displayed, the attachment will be displayed as a link.