Add CORS support to multires.
Add CORS support to multires.

Benvii/pannellum,Benvii/pannellum,Benvii/pannellum,riuson/pannellum,psteph801/psteph801.github.io,ywjrg/pannellum,mpetroff/pannellum,riuson/pannellum,psteph801/psteph801.github.io,riuson/pannellum,ywjrg/pannellum,eric-seekas/pannellum,psteph801/psteph801.github.io,mpetroff/pannellum,quentinyang/pannellum,eric-seekas/pannellum,riuson/pannellum,Benvii/pannellum,mpetroff/pannellum,quentinyang/pannellum,ywjrg/pannellum,quentinyang/pannellum,mpetroff/pannellum,eric-seekas/pannellum,psteph801/psteph801.github.io,eric-seekas/pannellum,quentinyang/pannellum,ywjrg/pannellum