Some additional notes on the reproduced failure:

• The issue is related to some failure in libwebkitgtk when parsing/executing the jQuery Mobile JavaScript sources. window.alert invocations work until the point where the jQuery Mobile sources were parsed/loaded. Unfortunately console.log was not found to work.
• Attempts to use weinre to debug the issue failed, with the debug client failing to attach itself to the debug target. The weinre debug client was able to attach itself to a Google-Chrome debug target though. We need some other option to debug the JavaScript parser in this version of libwebkitgtk.
• The version of webkit on the RHEL 6.3 instance was 531.2+, obtained from the user-agent string:

  Desktop/default : Mozilla/5.0 (X11; U; Linux x86_64; en-us) AppleWebKit/531.2+ (KHTML, like Gecko) Safari/531.2+

  . This version of WebKit is not offered any support by jQuery Mobile going by the Graded Browser Support, and neither was it supported in the original graded browser support matrix.

• Attempts to use SenchaTouch demo apps also failed with similar blank-screen issues in BrowserSim. We could rule out Sencha Touch as an alternative to jQuery Mobile in the html5 archetype/TiMo.