506504 - Thunderbird/SeaMonkey interprets "whole mail data including From - ..." as HTML when any choice of View/Character Encoding/Auto Detect is clicked (InternalLoad is invoked by touching Auto-Detect setting, and rendering problem occurs upon the InternalLoad)

Status: RESOLVED DUPLICATE of bug 236872

(MailNews Core :: Backend, defect)

Description

[WADA:World Anti-bad-Duping Agency]

Thunderbird/Seamonkey interprets "whole mail data including From - ..." as HTML when any choice of View/Character Encoding/Auto Detect is clicked.
This wrong display is corrected by "click other mail, then click mail again".

This is spin-off of Bug 505072 Comment #32.

[Build Id]
> Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.2pre) Gecko/20090724 Shredder/3.0b4pre
> Build identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.9.1.2pre) Gecko/20090721 SeaMonkey/2.0b2pre

[Steps to reproduce]
(1) Click any choice of View/Character Encoding/Auto Detect (Off is set in test)
(2) Click a mail => mail is displayed correctly
(3) Click any choice of View/Character Encoding/Auto Detect (Off in test)
(4) Whole mail data including "From ..." line is rendered as HTML source.

Comment 1

[WADA:World Anti-bad-Duping Agency]

Attachment: Screen shot

Left window:
  Content-Type: text/html; charset=UTF-8
  <meta> tag in HTML source
     <meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
  HTML source is really encoded in UTF-8

Right window: charset=windows-1252 in <meta> to force garbled display.
  Content-Type: text/html; charset=UTF-8
  <meta> tag in HTML source
    <meta content="text/html;charset=windows-1252" http-equiv="Content-Type">
  HTML source is really encoded in UTF-8

Comment 2

[WADA:World Anti-bad-Duping Agency]

Attachment: Test mail folder to see problem by utilizing double internal load of Bug 528736

If next mail, phenomenon can be observed only by viewing a mail.
  Simplest text/html mail
  charset in <meta http-equiv> != charset in Content-Type: header
  multiple <meta http-equiv for Content-Type with carset> exist in HTML
In this case, double internal load occurs due to bug 528736. So viewing a mail is sufficient to see phenomenon. This "multiple wrong meta/charset in HTML" case is based on real mail which produced problem of bug 572886. 

Checked with next trunk build.
> Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a6pre) Gecko/20100617 Shredder/3.2a1pre

Comment 3

[WADA:World Anti-bad-Duping Agency]

Phenomenon I wrote in comment #2 with simple text/html mail(and bug 572886 too) can't be observed with html5.enable=false.
To see problem of this bug with html5.enable=false, changing of View Character Encoding/Auto-detect is required.

Comment 4

[WADA:World Anti-bad-Duping Agency]

NSPR log with DOMLeak:5,DocumentLeak:5,nsDocShellLeak:5.

1. View a mail.
> 00000000	18:24:01.793	[3024] 0[192c140]: DOCSHELL 27dd660 InternalLoad mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	
> 00000001	18:24:01.918	[3024] 0[192c140]: DOCUMENT 2da9800 created	
> 00000002	18:24:01.918	[3024] 0[192c140]: DOCUMENT 2da9800 StartDocumentLoad mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	
> 00000003	18:24:01.918	[3024] 0[192c140]: DOCUMENT 2da9800 ResetToURI mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	
> 00000004	18:24:01.918	[3024] 0[192c140]: DOCSHELL 27dd660 SetCurrentURI mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	

2. At View/Character Encoding/Auto Detect, select "(off)"
> 00000005	18:24:10.637	[3024] 0[192c140]: DOCSHELL 27dd660 InternalLoad mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	
> 00000006	18:24:10.653	[3024] 0[192c140]: DOCUMENT 4ee0400 created	
> 00000007	18:24:10.653	[3024] 0[192c140]: DOCUMENT 4ee0400 StartDocumentLoad mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	
> 00000008	18:24:10.653	[3024] 0[192c140]: DOCUMENT 4ee0400 ResetToURI mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd/bug-572886-02?number=3548	
> 00000009	18:24:10.653	[3024] 0[192c140]: DOCSHELL 27dd660 SetCurrentURI mailbox:///C|/wada/@@@/Mail1/Bug-Test.sbd
/bug-572886-02?number=3548

Comment 6

[WADA:World Anti-bad-Duping Agency]

Screen shot attached to Bug 236872 looks same. Proabaly dup of the old bug.
Setting dependency.

Comment 7

[WADA:World Anti-bad-Duping Agency]

After fix of Bug 236872, problem can't be reproduced.