Quit tip for those that might be having trouble with Windows Phone.
I successfully exported to Windows Phone 8.1, loaded into Visual Studio 2013, built the .xap and deployed to my device.
The game would load to 98% but then hang. I tried in browser and found that the same thing happened when loaded the HTML5 exported version.
I found that if I disabled WebGL the game would load. I went through the process for exporting the Visual Studio file and building the xap and it worked.
Long story short, disable WebGL before exporting the project.
• Select Project Name
• Located "Enable WebGL" in the Properties/About
Not all the features of my game are working, such as posting scores into the db stored on my server, but at least it loads and most of it works.
Hopefully others find this helpful.