1428527 - Japanese characters get garbled in Response tab when charset is euc-jp

Status: NEW

(DevTools :: Netmonitor, defect, P2)

Description

[magicp]

Attachment: netmonitor-response-charset-euc-jp.png

Steps to reproduce:
1. Launch Nightly
2. Open Network Monitor (Ctrl+Shift+E)
3. Go to https://www.mozilla-japan.org/security/
4. Select a request, File "/security/"
5. Switch to Response tab

Actual results:
Japanese characters get garbled in Preview and Response payload. It reproduce with charset="Shift_JIS" too.

Expected results:
All of characters are shown correctly even if charset is not utf-8.

Comment 1

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Thanks for the report!

Honza

Comment 2

[Jan Honza Odvarko [:Honza] (always need-info? me)]

@Fred, can you pleas look at this one, perhaps simple to fix?

Honza

Comment 3

[[e-mail]]

After tracing I found iframe seems not taking content charset to encode the iframe content (our panel is utf8)
https://searchfox.org/mozilla-central/source/devtools/client/netmonitor/src/components/HtmlPreview.js#20

Here's a simple sample to test both iframe.src or iframe.srcdoc
https://jsfiddle.net/mvvgdkxt

I have not find a simple fix for this yet...