[release-branch.go1.7] static: don't use the jQuery func for looking up based on hash

$.find is safer.

Change-Id: I51893b64ce804ac5a70f780a1255af2c91413110
Reviewed-on: https://go-review.googlesource.com/35430
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/35431
Reviewed-by: Chris Broadfoot <cbro@golang.org>
1 file changed