I’m using https://addons.mozilla.org/en-US/firefox/addon/deepl/ in combination with Gutenberg editor. I mark one paragraph, use the addon shortcut, then can select and modify the translation in the addon window, just like on the deepl webpage. Then I copy the translation, close the addon window and paste the text.
This is quite quick, even though you must go through the whole document paragraph by paragraph.
Certainly it would be nice to automate this, or even integrate into the editor. But so far, I have found no plugin or solution compatible with WP Multilang.
But is there a way to fix this in the https plugin? Because even if I could patch a plugin to fix this, there would always be some plugin that doesn’t work.
And any https page with user content will eventualy contain http content, so this is a very essential problem.