New features of JS

[madatbay]

Most of the js features are not working, so I have to depreciate newer features to older ones. Cannot use foreach, const, .then, async/await, .includes, and etc. If I use it, the script file is ignored on pdf generation. And cannot use another feature for some of then like .then

[chdanielmueller]

Hi @madatbay

This sounds like you want to use those features while generating a pdf via wkhtmltopdf? e.g. a script within the html?
This would be an issue for https://github.com/wkhtmltopdf/wkhtmltopdf

If I got you wrong then the issue has probably to do with the node version in the image you are using.
If that's the case please try with 16.13.1-0.12.6-small or 16.13.1-0.12.6-full which feature all capabilities of node@16

[madatbay]

Currently, I'm using surnet/alpine-python-wkhtmltopdf:3.9.5-0.12.6-full version of docker-wkhtmltopdf. This image looks like contains all the features of wkhtmltopdf already and I have no control over the image when I use the docker version. Thought that could be some configuration error or something like this.

Looked through the issue of https://github.com/wkhtmltopdf/wkhtmltopdf and looks like Promises are not supported. Need to apply another logic. Thank you for early response

[chdanielmueller]

Thank you for getting back to the issue and closing it! 👍

Depending on your use case taking a look at https://babeljs.io could be worth it.