KhronosGroup/WebGL — pull request #465 by toji (2014-02-07 18:22:16+00:00)
Title: Allow cross origin tests to run locally without dependence on an external server.

Exploits the fact that the browser will consider localhost and 127.0.0.1 to be different origins, even though they route to the same place. When running the test on a non-local server the image will continue to be fetched from opengl.org