Add a way to automatically get script license and unminified code (if available)

[Orisphera]

What problem are you trying to solve?

There are some use cases that require getting the license of a script and/or its unminified version. However, AFAIK there are no ways to do this in the standard.

What solutions exist today?

There's a browser extension that uses several ways to get the license, such as searching for a link marked in a certain way and checking the table it links to. (I don't know if there are any other existing uses, but I can think of some potential ones.) However, many websites don't have the data it looks for.

How would you solve it?

I would add two attributes to the <script> tag. For the first one, I have two options. One is min with a URL to the minified script. If it exists or the body isn't empty, src shouldn't be loaded. This option wouldn't be exactly backwards compatible. The other option is source with a URL to the unminified version. I think the second option is better, but I've decided to leave the first one, too. The other new attribute should be license or a shortened version thereof. It should contain an identifier of the license(s). There should be built-in ones (probably from Nixpkgs), and it should be possible to define custom ones. It should be set up in a way that specifying a license counts as releasing the script under that license. HTML validators should give errors when a script tag is missing license or the license requires source to be present, but it isn't. An example of a script tag with these attributes is <script src="pwa.min.js" source="pwa.js" license="gpl3plus"/>. (It's how it would be for my WIP game, Paul's Weird Adventure. I didn't know about progressive web apps, Paul's Miraculous Adventure, or Pepe and Paul's weird adventure with Meliodas, Zeldris, and Estarossa when choosing the name.)

Anything else?

No response