Z:gnu-www-ja-javascript-trap--c11340-The =3Ca href=3D"/licenses/gpl.htm/en

The GNU GPL, like many other free software licenses, requires distribution of a copy of the license with both source and binary forms of the program. However, the GNU GPL is long enough that including it in a page with a JavaScript program can be inconvenient. You can remove that requirement, for code that you have the copyright on, with a license notice like this: