I did not have Red Necromancy, that is probably it. Thanks!
The export save system doesn't work with HTML5 because Godot's clipboard API is self-contained and can't get to the OS of the user. It's a problem I've been wanting to fix for awhile, but I've been holding out on it. Getting the save out of the cookies folder would be really obnoxious, and I don't know how to do it.
But it is useful to know that it's giving 0 instead of 1, it helps me know where to look in my code