Fix bug that leads to no output when PUPPETEER_PDF_CMD_OPTIONS is configured

[cassidylaidlaw]

If PUPPETEER_PDF_CMD_OPTIONS is configured in the Django settings without a 'path' key, then no --path argument is passed to puppeteer-pdf. In that case, an empty response is returned. It seems like one should be able to configured options without specifying a specific path to use every time, so I fixed it to always include a path key. Let me know if that seems reasonable.

[gevezex]

What happened to this fix? As the bug is still there.

[gevezex]

For what is worth, this can be solved by adding the line to the utils.py line 76:

    # Default options:
    options = getattr(settings, 'PUPPETEER_PDF_CMD_OPTIONS', None)
    if options is None:
        options = {'path': output}
    else:
        options = copy(options)
        options['path'] = output   # add this line
    options.update(kwargs)