Google Translate broken: "Add" button not appearing

[DavidFernandezBonet]

Your software

• OS: Windows 10
• Browser: Chrome
• Extension: Tampermonkey

Describe the bug
The add button stopped appearing not long ago without having changed anything about my set-up. I have been using Google Translate. I am running updated version of browser/extension.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'translage.google.com'
2. Open Anki Desktop
3. Translate a word
4. Anki "Add" button does not appear.

Expected behavior
Anki "Add" button should appear

Screenshots

[OoDeLally]

The console shows the following error:
This document requires 'TrustedHTML' assignment.

It seems that Google Translate made its CSP more restrictive. This is probably due to the answer's header:

content-security-policy: require-trusted-types-for 'script'

On Firefox I get similar error:

Content Security Policy: The page’s settings blocked the loading of a resource at inline (“script-src”).

For now I unfortunately do not have a solution.
It is likely that it affects any userscript trying to run on Google Translate.

In addition I do not have a sufficient knowledge of CSPs to figure out whether there can be a workaround.

So wait and see... (suggestions and PR welcome!)