1263394 - After entering/exiting reader mode, "Back" button returns me to reader mode instead of to previous page in my history

Status: VERIFIED DUPLICATE of bug 1184950

(Toolkit :: Reader Mode, defect)

Description

[Daniel Holbert [:dholbert]]

STR:
 1. Visit https://medium.com/frog-and-toad-are-cofounders
 2. Click on some article in the listing.
 3. Enter & exit reader mode (click the icon in the URL bar, wait the page to load, and click it again)
 4. Click "Back" button.

EXPECTED RESULTS:
I should return to the URL that I started out at -- the article listing.

ACTUAL RESULTS:
I'm taken "back" to the reader mode view of the page.

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: screencast of bug

Comment 2

[Daniel Holbert [:dholbert]]

I'm using Firefox Nightly, 48.0a1 (2016-04-09) on Ubuntu Linux.
I can reproduce in current release, too (Firefox 45.0.1).  So, this is not necessarily a regression.

(Also, as noted in bug 1263396 comment 3: this bug & that bug are both about reader mode & navigation, but they're describing different issues.)

Comment 3

[Daniel Holbert [:dholbert]]

Like the medium/reader-mode bug I filed (bug 1263396), this is now fixed -- STR give me EXPECTED RESULTS in latest nightly, with fix range:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=ae7413abfa4d&tochange=f05a1242fb29

Looks like this must've been fixed by either bug 1263628 or Bug 1184950. Feel free to upgrade my "WORKSFORME" resolution to make this a duplicate, if anyone has confidence about which bug was the more likely fix.

Comment 4

[arni2033]

I checked both bugs