Hi,
I understand that you would like to be able to host the Workflow Foundation Designer in a C#/XAML for HTML5 so that end-users can use the web browser to design a workflow, right?
In this case, sorry, this is currently not supported by C#/XAML for HTML5.
I have just created for you a new entry on the UserVoice page. Please vote for it at the following URL:
http://cshtml5.uservoice.com/forums/274799-c-xaml-for-html5-feature-requests/suggestions/9785646-ability-to-host-the-workflow-foundation-wf-desigThanks.
Regards,
JS-Support