Bug 377084

Summary:	WebEnginePart does not render kio output (kio_help, kio_man, ...)
Product:	[Applications] konqueror	Reporter:	Luigi Toscano <luigi.toscano>
Component:	webenginepart	Assignee:	Stefano Crocco <stefano.crocco>
Status:	RESOLVED FIXED
Severity:	normal	CC:	elbin.p, faure, felix, kde, ptselios, rdieter, skyrostyan, zawertun
Priority:	NOR
Version:	Git
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:

Description Luigi Toscano 2017-03-01 22:55:38 UTC

The WebEnginePart (default rendered) does not render the output from kioslaves like kio_help, kio_man, kio_gopher, and probably all of the others which renders HTML. The error printed is:

---------------------------
This site can’t be reached

The webpage at <url:/foo/bar> might be temporarily down or it may have moved permanently to a new web address.
ERR_UNKNOWN_URL_SCHEME
--------------------------

This is not a Konqueror issue, as the "KHTML" view mode renders correctly those contents.
This issue is visible in from Applications 16.12 up to the last git master.

Comment 1 Alain Dumont 2017-05-13 13:52:08 UTC

(In reply to Luigi Toscano from comment #0)
> The WebEnginePart (default rendered) does not render the output from
> kioslaves like kio_help, kio_man, kio_gopher, and probably all of the others
> which renders HTML. The error printed is:
> 
> ---------------------------
> This site can’t be reached
> 
> The webpage at <url:/foo/bar> might be temporarily down or it may have moved
> permanently to a new web address.
> ERR_UNKNOWN_URL_SCHEME
> --------------------------
> 
> This is not a Konqueror issue, as the "KHTML" view mode renders correctly
> those contents.
> This issue is visible in from Applications 16.12 up to the last git master.

Same bug here with Konqueror-16.2.3 Frameworks 5.33, QT-5.8.0 (build with qtwebengine).
Konqueror doesn't open man:/  info:/ ... when using "WebEngine".
It works with KHTML.

Comment 2 David Faure 2017-07-14 14:48:08 UTC

Git commit 8a5ef4d042f45668cf0364f341f6abca007a85c8 by David Faure.
Committed on 14/07/2017 at 14:41.
Pushed by dfaure into branch 'webengine_streaming'.

Add support again for man:, info: and other slaves which output HTML.

using the newly added support for streaming data into WebEnginePart.

M  +10   -0    src/konqview.cpp
M  +8    -3    webenginepart/src/webenginepage.cpp
M  +5    -2    webenginepart/src/webenginepart.cpp

https://commits.kde.org/konqueror/8a5ef4d042f45668cf0364f341f6abca007a85c8

Comment 3 David Faure 2017-07-14 14:50:14 UTC

I have a fix, but the link to file:/// stylesheets fail to load due to security checks in WebEngine.

I submitted https://bugreports.qt.io/browse/QTBUG-61937 to possibly fix that, the alternative would be to embed the stylesheet into the HTML (and use data URLs for icons).

I pushed my current work into a branch (since it redesigns the support for the about: page too, which now suffers from the same security issue).

See branch webengine_streaming in konqueror.git.

Comment 4 Wolfgang Bauer 2018-02-07 13:09:28 UTC

*** Bug 386247 has been marked as a duplicate of this bug. ***

Comment 5 Stefano Crocco 2018-07-16 09:16:28 UTC

Fixed in commit d0842c88fc5a8410c88dbd6ac0def09adc7c1fb6