843990 - KOI8 HTML messages are decoded incorrectly

Status: RESOLVED DUPLICATE of bug 594646

(Thunderbird :: Message Reader UI, defect)

Description

[Vladimir Morozov]

Attachment: KOI8 Charset test

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20130213 Firefox/21.0
Build ID: 20130213031137

Steps to reproduce:

Receive or compose message in HTML format in KOI8-RU charset.


Actual results:

Cyrillic symbols are displayed incorrectly. Looks like system tries to convert KOI8 to unicode and then display as single-byte charset.

Note: Text-only, Simplified HTML or in another single-byte charset (like 1251) messages are displayed correctly.


Expected results:

Cyrillic symbols shod be displayed in right way.

Comment 1

[Vladimir Morozov]

Attachment: Screenshot of message

Comment 2

[WADA:World Anti-bad-Duping Agency]

> Version: 22
>     <meta content="text/html; charset=KOI8-R" http-equiv="Content-Type">

Problem of bug 820335?
Do you see your problem with following?
>    <meta http-equiv="Content-Type" content="text/html; charset=KOI8-R">
When(from which Tb version) did your problem start to occur?

Note: Bug 594646 disappeared once, but has revived as reported to bug 820335. Because root cause of Bug 594646 is not resolved yet, bug 820335 was dup'ed to Bug 594646.

Comment 3

[Vladimir Morozov]

Yes. It is because of Bug 594646
>> <meta content="text/html; charset=KOI8-R" http-equiv="Content-Type">
If i remove this line inside message - problem disappears. Even if http-equiv is on enother line there are no problems (as with windows-1251 charset - meta tag line is too long and is splitted on two lines).

I can't remember, when the problem appeared - may be a year ago. Usually messages comes with UTF-8, but, sometimes, if origin of first mail is IPad and then forwarded/responded in thunderbird - it keeps KOI8-R, but 
THUNDERBIRD INSERTS META TAG WHICH IT CAN'T PROCESS PROPERLY????