Blank pdfs when printing from web - parse error - anything I can do?

[Natalie]

Hi all, this is my first time with wkhtmltopdf and it looks like a great tool.

However whilst most websites are fine I am getting blank pages when I try to print from the specific online forms that I need.  I've created the simplest possible case and have put in a long javascript-delay but am still getting blank pages.  Having put in the debug I can see there's a warning for a parse error in the page's javascript.

I have no control over the code on the web pages that I am printing - and they load fine onscreen and manually print fine either to pdf or other printing mechanisms.

Is there anything I can do differently to make this work through wkhtmltopdf?  

wkhtmltopdf --enable-javascript --javascript-delay 5000 --debug-javascript --no-background --load-error-handling ignore https://ee.humanitarianresponse.info/single/xijUsOiQ testing.pdf

gives me

Loading pages (1/6)

Warning: https://ee.humanitarianresponse.info/js/build/enketo-webform-bundle.min.js:1 SyntaxError: Parse error

Counting pages (2/6)

Resolving links (4/6)

Loading headers and footers (5/6)

Printing pages (6/6)

Done

Thank you for any advice,

Natalie

[George Reynolds]

Hi 

This answer doesn't address your issue with wkhtmltopdf but you can run chrome in 'headless' mode ie without a GUI and it will create a PDF for you. 

It seems like this solution would work better for you with one or two pages, where you're not using a program eg in Python

https://stackoverflow.com/questions/46077392/additional-options-in-chrome-headless-print-to-pdf

That page should help you with the correct command.

Thanks 

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