The problem is that if the plugin speak into stdout than it confusing our stdout based ipc.
Created attachment 135332 [details] Patch
Comment on attachment 135332 [details] Patch r=me
Comment on attachment 135332 [details] Patch Clearing flags on attachment: 135332 Committed r113041: <http://trac.webkit.org/changeset/113041>
All reviewed patches have been landed. Closing bug.