Fixes #13805.  Expand existing try/catch to encompass the getComputedStyle call.
Fixes #13805.  Expand existing try/catch to encompass the getComputedStyle call.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@26432 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful