814030 - FF17 shows RTL text of browser title

Status: UNCONFIRMED

(Core :: Layout: Text and Fonts, defect)

Description

[Alex Vincent [:WeirdAl]]

Steps to reproduce:
(1) Load the URL into the web browser.
(2) Observe the titlebar.

Expected: The characters " - Mozilla Firefox"
Actual:  These characters are actually reversed.

Comment 1

[Alex Vincent [:WeirdAl]]

The view-source rendering is also slightly different than what shows up in the tab's title.

Comment 2

[Scott Johnson (:jwir3)]

The xkcd comic is not a valid testcase. ;)

Comment 3

[Scott Johnson (:jwir3)]

(In reply to Alex Vincent [:WeirdAl] from comment #0)
> Steps to reproduce:
> (1) Load the URL into the web browser.
> (2) Observe the titlebar.
> 
> Expected: The characters " - Mozilla Firefox"
> Actual:  These characters are actually reversed.

I'm unable to reproduce this given these steps. Is there something that's missing? (i.e did you perhaps set an RTL preference in about:config?)

Comment 4

[Alex Vincent [:WeirdAl]]

Attachment: screenshot on Windows

Comment 5

[Alex Vincent [:WeirdAl]]

(In reply to Scott Johnson (:jwir3) from comment #3)
> I'm unable to reproduce this given these steps. Is there something that's
> missing? (i.e did you perhaps set an RTL preference in about:config?)

Not to my knowledge - I tried it using a fairly clean - if old - profile on Linux and now on Windows.

Comment 6

[Jonathan Kew [:jfkthame]]

There's a U+202E (right-to-left override, RLO) character in the page's <title>, before the characters "LTR", and there's no matching PDF (pop directional formatting); i.e., the title is actually "xkcd: <RLO>LTR".

So when " - Mozilla Firefox" is appended to the title, the RLO is still in effect, and those characters also take on RTL directionality.

Comment 7

[Simon Montagu :smontagu]

In the tab title I see "xkcd: LTR", but in the tooltip when hovering the tab title I see "xkcd: RTL".

Comment 8

[Scott Johnson (:jwir3)]

(In reply to Scott Johnson (:jwir3) from comment #2)
> The xkcd comic is not a valid testcase. ;)

*sigh* Sorry, my bad. I was sleeping when I wrote this.

Comment 9

[Simon Montagu :smontagu]

View-source is also affected: I see

<title>xkcd: </title>RTL

This may be bug 717811.

Comment 11

[Simon Montagu :smontagu]

For tab bar title (comment 7) see bug 814347

Comment 12

[Terence Eden]

This bug also affects Ubuntu.  Screenshot at http://shkspr.mobi/blog/wp-content/uploads/2014/02/Firefox-RTL-Search-fs8.png

A Google / Bing / Yahoo search like https://www.google.co.uk/search?q=Harry+%E2%80%AErettoP will reverse the text of the Window - due to the presence of &#x202e; in the <title>.