Exit code 1 Not managed in the way WKHTMLTOPDF intended

[brownerg]

Please see connected issue: #67 which stumbles across this issue.

I have an html document that contains an image url that 404's. WKHTMLTOPDF will return exit code 1 however looking at the issue below exit codes 0, 1 and Z still renders the pdf.

KnpLabs/snappy#177 (comment)

Despite I feel that django-wkhtmltopdf is doing the right thing, it does not reflect what wkhtmltopdf is documented todo.

I want to display the PDF even if one of the error codes is returned from wkhtmltopdf, but django-wkhtmltopdf trumps the output with an error. For this reason, I expect django-wkhtmltopdf to replicate the documented behaviour of wkhtmltopdf.

[johnraz]

This request does make sense at first glance. @brownerg do you mind trying to submit a PR for this?

[ghost]

I'm not sure the exit codes mentioned in that link are correct. Here's my solution to this problem: #128