How to clear the cache?

[Andorxor]

I have added a additional sidebar on the right in master.js.
Than i forgot a , in the js-file for the sitebar ,i corrected that.
But now i can not clear the cache with #Admin/clearCache because i get the error ''master is null",Is there another way to clear the cache?

[Andorxor]

I have cleared the cache now. clearCache was post not get