If directly-entered URL load fails, show the location of the displayed page

[diracdeltas]

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Ran git rebase -i to squash commits (if needed).

Fix #3851
Add regression test for #2723

Auditors: @bridiver

Test Plan:
open bankofamerica.com in a tab
put http://bayden.com/test/redir/goscript.aspx in the urlbar and hit enter
verify that the URL bar still says bankofamerica.com

[bbondy]

++

[luixxiul]

@diracdeltas pasting http://bayden.com/test/redir/goscript.aspx on the same tab after 1st try makes the url to it instead of bankofamerica.com, which is intended?

[diracdeltas]

@luixxiul that appears to be a bug

[luixxiul]

I created follow-up: #3928