Ensure there's a block before testing it. Fixes #310
Ensure there's a block before testing it. Fixes #310

GabiGrin/trix,urossmolnik/trix,basecamp/trix,urossmolnik/trix,basecamp/trix,ChenMichael/trix,basecamp/trix,basecamp/trix,GabiGrin/trix,ChenMichael/trix,urossmolnik/trix,GabiGrin/trix,ChenMichael/trix