HTML page turns completely white/empty

[mateusfmello]

wkhtmltopdf version(s) affected:

0.12.6 (with patched qt)

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OS information

Also tested within docker

NAME="Linux Mint"
VERSION="19.1 (Tessa)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 19.1"
VERSION_ID="19.1"
HOME_URL="https://www.linuxmint.com/"
SUPPORT_URL="https://forums.linuxmint.com/"
BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/"
PRIVACY_POLICY_URL="https://www.linuxmint.com/"
VERSION_CODENAME=tessa
UBUNTU_CODENAME=bionic

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Description

When trying to convert this HTML page ( link ) to PDF the result is blank / empty

This is the output from the terminal:

root@mateus-pc:/tmp# wkhtmltopdf http://f1bratelecom.com.br/p/inv?sd=iEs9lYET9WF%2FclABZLYEOsn7AUdbJqI%3D ./fibra.pdf 
Loading pages (1/6)
Counting pages (2/6)                                               
Resolving links (4/6)                                                       
Loading headers and footers (5/6)                                           
Printing pages (6/6)
Done                                                                      
root@mateus-pc:/tmp# 

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How to reproduce

Run this command wkhtmltopdf http://f1bratelecom.com.br/p/inv?sd=iEs9lYET9WF%2FclABZLYEOsn7AUdbJqI%3D ./fibra.pdf

Open the output file and note that it will be completely empty/blank

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Expected behavior

That the HTML page was converted to HTML completely as displayed in browsers

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Possible Solution

I believe the problem is due to the HTML being rendered by Angular