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crashes on page with emoji in title #2306

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samuelallan72 opened this issue Feb 9, 2017 · 10 comments
Closed

crashes on page with emoji in title #2306

samuelallan72 opened this issue Feb 9, 2017 · 10 comments

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@samuelallan72
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samuelallan72 commented Feb 9, 2017 •
edited

When I open a page containing a unicode emoji in the title element, such as this:

<html>
  <head>
    <title>🕴️</title>
  </head>
  <body>
    <p>
      Test page with a unicode emoji in the title.
    </p>
  </body>
</html>

I get weird behaviour depending on where/how I open qutebrowser.

qutebrowser version info

qutebrowser v0.9.1
Git commit: v0.9.0-220-g038a517c5 (2017-02-08 23:46:37 +0100)
Backend: QtWebKit

CPython: 3.6.0
Qt: 5.8.0
PyQt: 5.7.1

sip: 4.19
colorama: 0.3.7
pypeg2: 2.15
jinja2: 2.9.5
pygments: 2.2.0
yaml: 3.12
cssutils: 1.0.1 $Id$
typing: yes
PyQt5.QtWebEngineWidgets: yes
pdf.js: 1.6.210 (/usr/share/pdf.js/build/pdf.js)
Webkit: 538.1
SSL: OpenSSL 1.0.2k  26 Jan 2017

Style: Qt5CTProxyStyle
Platform: Linux-4.9.8-1-ARCH-x86_64-with-arch, 64bit
Frozen: False
Imported from /usr/lib/python3.6/site-packages/qutebrowser
OS Version: 

--- /etc/lsb-release ---
LSB_VERSION=1.4
DISTRIB_ID=Arch
DISTRIB_RELEASE=rolling
DISTRIB_DESCRIPTION="Arch Linux"

--- /etc/os-release ---
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
ID_LIKE=archlinux

Paths:
config: /home/samuel/.config/qutebrowser
data: /home/samuel/.local/share/qutebrowser
system_data: /home/samuel/.local/share/qutebrowser
cache: /home/samuel/.cache/qutebrowser
download: /home/samuel/Downloads
runtime: /run/user/7000/qutebrowser
@The-Compiler
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Can you try with e.g. QupZilla please?

@samuelallan72
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Aha, same issue. http://paste.the-compiler.org/view/186f1722

Also probably related - CopyQ also crashes now after copying some emoji into the clipboard.

@The-Compiler
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The-Compiler commented Feb 18, 2017 •
edited

This is interesting... how about this?

import sys
from PyQt5.QtWidgets import QApplication, QLabel

app = QApplication(sys.argv)
label = QLabel(text='a🕴️b')
label.show()
app.exec_()

@samuelallan72
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Yep, that segfaults instantly. Interestingly enough, now qutebrowser doesn't crash, but simply shows a missing glyph box instead of the emoji...

@The-Compiler
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Okay, this definitely looks like a Qt bug then - I don't have the time to track those down too I'm afraid, too busy with qutebrowser bugs 😉

Can you please open an issue in the Qt bugtracker with that example and stacktrace and link it here though?

@samuelallan72
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QT bug report: https://bugreports.qt.io/browse/QTBUG-59022

@The-Compiler
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Thank you! Closing this then.

@The-Compiler
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I wonder whether the fix for QTBUG-64239 also fixes this. It's part of Qt 5.9.3, which was released today. @swalladge can you check whether you can still reproduce this now, and then re-check as soon as Arch has Qt 5.9.3?

@samuelallan72
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Can confirm, segfault still happens in 5.9.2. I'll let you know regarding 5.9.3 as soon as I get it installed.

@samuelallan72
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@The-Compiler it renders perfectly with no segfaults with 5.9.3! 👍

This was referenced Feb 8, 2018
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@The-Compiler @samuelallan72