Sending null would crash the browser. Added safeguards in both the bindings and the native code.
Created attachment 140928 [details] Patch
Comment on attachment 140928 [details] Patch I support not crashing. :)
Comment on attachment 140928 [details] Patch Clearing flags on attachment: 140928 Committed r116530: <http://trac.webkit.org/changeset/116530>
All reviewed patches have been landed. Closing bug.