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--css option doesn't work with wkhtmltopdf 0.12.6 #6474

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junkblocker opened this issue Jun 20, 2020 · 6 comments
Closed

--css option doesn't work with wkhtmltopdf 0.12.6 #6474

junkblocker opened this issue Jun 20, 2020 · 6 comments

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@junkblocker
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junkblocker commented Jun 20, 2020 •
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Steps to reproduce

% printf "===\nfoo\n===\n\nbar" > in.rst
% echo > test.css
% pandoc -f rst -t html5 --css=test.css -o out.pdf in.rst
Loading pages (1/6)
Warning: Blocked access to file /private/tmp/test.css
Error: Failed to load about:blank, with network status code 301 and http status code 0 - Protocol "about" is unknown
Counting pages (2/6)
Resolving links (4/6)
Loading headers and footers (5/6)
Printing pages (6/6)
Done
Exit with code 1 due to network error: ProtocolUnknownError
Error producing PDF.

% pandoc -v
pandoc 2.9.2.1
Compiled with pandoc-types 1.20, texmath 0.12.0.1, skylighting 0.8.3.2
Default user data directory: /Users/xxx/.local/pandoc or /Users/xxx/.pandoc
Copyright (C) 2006-2020 John MacFarlane
Web:  https://pandoc.org
This is free software; see the source for copying conditions.
There is no warranty, not even for merchantability or fitness
for a particular purpose.

The breakage does not happen when --css option is not supplied.

% pandoc -f rst -t html5 -o out.pdf in.rst
Loading pages (1/6)
Counting pages (2/6)
Resolving links (4/6)
Loading headers and footers (5/6)
Printing pages (6/6)
Done
@mb21
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mb21 commented Jun 21, 2020 •
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Works on my macOS 10.15 with wkhtmltopdf 0.12.5

What's your versions?

The problem is this:

Warning: Blocked access to file /private/tmp/test.css

seems wkhtmltopdf is trying to write temp files there...

@junkblocker
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I am on latest macOS 10.15.5.

% uname -a
Darwin abcd.local 19.5.0 Darwin Kernel Version 19.5.0: Tue May 26 20:41:44 PDT 2020; root:xnu-6153.121.2~2/RELEASE_X86_64 x86_64

I have installed wkhtmltopdf via homebrew

% wkhtmltopdf -V
wkhtmltopdf 0.12.6 (with patched qt)

The failure occurs no matter where the css file is.

@jgm
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jgm commented Jun 21, 2020

I can reproduce this with dev version of pandoc on latest macOS, with same version of wkhtmltopdf. I infer from my own error message that /private/tmp is your working directory.

In any case, the message is definitely coming from wkhtmltopdf, which pandoc is running in a subprocess.

@jgm
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jgm commented Jun 21, 2020

It can be reproduced completely outside pandoc, so I suggest you report the issue to wkhtmltopdf. Let us know if you find out anything helpful.

% cat in.html 
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="" xml:lang="">
<head>
  <title>foo</title>
  <link rel="stylesheet" href="test.css" />
</head>
<body>
<h1 class="title">foo</h1>
<p>bar</p>
</body>
</html>

% wkhtmltopdf in.html in.pdf
Loading pages (1/6)
Warning: Blocked access to file /Users/jgm/src/pandoc/test.css    
Error: Failed to load about:blank, with network status code 301 and http status code 0 - Protocol "about" is unknown
Counting pages (2/6)                                               
Resolving links (4/6)                                                       
Loading headers and footers (5/6)                                           
Printing pages (6/6)
Done                                                                      
Exit with code 1 due to network error: ProtocolUnknownError

@junkblocker junkblocker mentioned this issue Jun 21, 2020
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@junkblocker
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Got the answer from wkhtmltopdf folks - wkhtmltopdf/wkhtmltopdf#4735 . 0.12.6 had the breaking change https://github.com/wkhtmltopdf/wkhtmltopdf/releases/tag/0.12.6 . Needs --enable-local-file-access flag added to work.

@mb21 mb21 changed the title --css option broken --css option doesn't work with wkhtmltopdf 0.12.6 Jun 22, 2020
@jgm jgm closed this as completed in 76fc51f Jun 22, 2020
@nook24 nook24 mentioned this issue Apr 26, 2021
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@tpo
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tpo commented Sep 1, 2021 •
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use pandoc --pdf-engine-opt=--enable-local-file-access when you get this error. Mind the meaning of enable-local-file-access

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4 participants
@jgm @junkblocker @mb21 @tpo