106311 - Vertical Tab and Form Feed should not be displayed

Status: RESOLVED WORKSFORME

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

Description

[Alistair Vining]

The above page looks really ugly because we display the Vertical Tab (U+000B) as
a box.

For compatibility with IE6 and NS4, we should not display U+000C Form Feed, either.

In View Source, however, different issues may apply...

Comment 1

[Alistair Vining]

Attachment: Test case with all the C0 Controls

Comment 2

[Moied]

Changing OS->ALL

Comment 3

[Alistair Vining]

*** Bug 109975 has been marked as a duplicate of this bug. ***

Comment 4

[harishd]

This bug has been marked "future" because the original netscape engineer working 
on this is over-burdened. If you feel this is an error, that you or another
known resource will be working on this bug,or if it blocks your work in some way 
-- please attach your concern to the bug for reconsideration -----

Comment 5

[Christopher Hoess (gone)]

*** Bug 114524 has been marked as a duplicate of this bug. ***

Comment 6

[Christopher Hoess (gone)]

*** Bug 111696 has been marked as a duplicate of this bug. ***

Comment 7

[Christopher Hoess (gone)]

->Fonts & Text

Comment 8

[Simon Montagu :smontagu]

*** Bug 161812 has been marked as a duplicate of this bug. ***

Comment 9

[Jouni Airaksinen]

Probably related to this. With html code,

<a href="link" title="Line 1&#10;Line 2&#10;Line 3">Link</a>

The title popup (tool hint) for the link is shown as one line with the line feed
characters rendered as single characters. IE6 renders the popup correctly as
multiline popup. 

Same thing happens with "cold" line feed within the attribute value, eg.

<a href="link" title="Line 1
Line 2
Line 3">Link</a>

Comment 10

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Not related.

Comment 11

[Wayne Mery (:wsmwk)]

dupe Bug 437915 - acid3 test 33 fails: whitespace error in class processing

Comment 12

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Not related.

Comment 13

[Mats Palmgren (inactive)]

There's actually a spec for this now: https://drafts.csswg.org/css-text-3/#white-space-processing (last paragraph), which we have implemented but is still disabled by default (bug 1329613).
So I don't think there's anything in this bug per se that needs a separate fix.