Horizontal scrolling broken when diff'ing files in Crucible on MS Edge

[Peter Row]

We have JIRA and integrate crucible for code reviews. In MS Edge when viewing a file that has a long line that causes a horizontal scrollbar to appear attempting to scroll it causes the *vertical* scrollbar to reset.

If I move the horizontal scrollbar before scrolling the vertical scrollbar then it will not reset. Although obviously this is not idea.  I tried it on Chrome and it worked okay.