Great new feature & works like a charm! Do you also want to include MPL as an alternative copyleft license? It's IMHO the preferred copyleft license for Javascript code, since it was designed with the web in mind, and has an excellent FAQ [2] that helps to understand the implications. The GPL-family licenses are from a different era, which, at least according to some people [3] can be problematic for Javascript. [1] https://www.mozilla.org/en-US/MPL/ [2] https://www.mozilla.org/en-US/MPL/2.0/FAQ/ [3] https://stackoverflow.com/a/1239727 PS: I discovered MPL thanks to mapshaper: https://github.com/mbloch/mapshaper#license

Thanks for the suggestion! I’ve put the MPL on the list for consideration for our next round of license additions.

Is there a set convention for the name of a cell to use for a license? It isn't described here. That is, should it be "license", "License", "LICENSE", are any of those okay, ...? Should the licence cell have just the license text, or also include a license name? etc. It might be a good idea to set a custom license directly on this page, as an example.