Pageless google doc using parameters?

As you know, there's a pageless mode in google docs that allows you to remove the borders of a document.

https://support.google.com/docs/answer/11528737

I want that because I'm embedding documents in a website, and I want them to look like regular editors. Not like:

I know I can pass parameters in the url like ?rm=minimal. That way, I can hide the menus. And that's great. Though those parameters are not officially documented there are a few references like in here:All Google Docs URL parameters/functions/commands?

But do you know if pageless is available as a url param? I tried things like ?pageless, ?pageless=true, ?page=pageless, ?setup=pageless with no luck.

So, any clue on how to enable pageless without opening the menu manually? I want to automate this.