cannot go Back after going to external web pages

[Elaine Meng]

In the Qt version but not the Wx version, clicking a link to an external site such as this from the Quick Start:

Example structure: Protein DataBank
<a href="​http://www.rcsb.org/pdb/explore.do?structureId=2bbv"
target="_blank">2BBV</a>, black beetle virus capsid

...gives a traceback (whereas in the Wx version it will show the page in your regular browser):

Traceback (most recent call last):
File "/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/help_viewer/gui.py", line 151, in createWindow
help_ui = HelpUI(self.session, self.bundle_info)
TypeError: init() missing 1 required positional argument: 'target'

[Greg Couch]

Got rid of the traceback, but the links still don't work.

[Conrad Huang]

Link now works, but "Back" button does not work after visiting external link.

[Elaine Meng]

If I understand correctly this is not specifically from external links, but links encoded to open in a separate page (e.g. with target="_blank").

[Conrad Huang]

This will be fixed by implementing a tabbed browser interface for the help viewer. In the mean time, we should remove the "target" fields if going back is important. If target is left in place, the "Home" button should still get you back to the very initial page.

[Elaine Meng]

Can't the page just be opened in the Help Viewer without obliterating the navigation history? I was willing to wait for tabs when I thought they might be implemented relatively soon, but it doesn't sound like that is going to happen.

[Conrad Huang]

I believe opening new files in the help viewer no longer wipes history. The first page displayed is still set as the home page, though. Perhaps we should make "​http://www.rbvi.ucsf.edu/chimerax/" the home page, regardless of which page is first displayed?

Tabs are still not implemented yet.

[Elaine Meng]

It depends whether you want the help viewer home page to depend on the interwebs.  Some alternatives includes in the download are the documentation index or the User Guide index.

[Greg Couch]

Implemented tabbed browser, so external web pages get a new tab.