Can't remove shared track

[kevinschaper]

A fellow zfinner and I have been testing our new GBrowse2 instance. He uploaded a .wig file, then shared the track with me, and neither he nor I can remove the track from our Custom Tracks tab.

When either of us hits the [X] we get a spinner, but no change.

There's no errors on the apache side, but I do see this in the javascript console:

TypeError: 'null' is not an object (evaluating '$("community_display_offset").value')

Here's the click event code for the [X] link:

< a onclick = "unshareFile('track_eebde9_GSM1133391_chrall.sperm.chr_removed.wig', '')" onmouseover = "GBubble.showTooltip(event,"Remove from my session",0,200)" href = "javascript: void(0)" > [X] < /a>

On first glance, $("community_display_offset") looks like an odd jQuery selector, since it looks like it's referring to a tag rather than a class or id….but I see it all over, so I'm guessing that's not the problem.

We're using GBrowse 2.55, with the user database features turned off.

Using Reset from the File menu clears the shared track, but I'm guessing the expected behavior is that the [X] should remove the shared track.