OSError: wkhtmltoimage exited with non-zero code 1. error: Unknown long argument --no-background

[IdanRot]

Describe the bug
python imgkit doesnt recognize no-background option.

To Reproduce in python:

import imgkit
kitoptions = {
    'no-background': ''
}
imgkit.from_file('test.html', 'out.png', options=kitoptions)

Expected behavior
etting a no-background image. instead getting an error:

OSError: wkhtmltoimage exited with non-zero code 1. error:
Unknown long argument --no-background

• OS: [windows 10]
• IMGkit Version [e.g. 1.2.2]
• wkhtmltopdf Version [0.12.6 ]

Additional context
other options are working fine.

[jarrekk]

did you run wkhtmltoimage with --no-background parameter and check if there is an error?

[IdanRot]

Hi, I used "transparent": "" and it worked nicely