How can I get Chromecast correctly display unicode characters using custom receiver?

Question

I've setup a custom receiver application using CastHelloText-android as a base, and I'm trying to get it to correctly display certain unicode characters, however it is just displaying a blank space instead where the characters should be.

<div id="message">Test: &#2613;&#2622;&#2617;&#2623;&#2583;&#2625;&#2608;&#2626; :End Test</div>

This renders correctly on the site where I'm hosting the custom receiver, but when attempting to display it using a DataCastManager from the Cast Companion Library, the unicode characters aren't showing up. Is there any way to make this display or is there an alternative?

UPDATE: I just tried the message:

<div id="message">Test: &#2394; &#2613;&#2622;&#2617;&#2623;&#2583;&#2625;&#2608;&#2626; :End Test</div>

And the character (ग़) for

ग़

shows up just fine. I'm assuming this is a supported language issue then?

Update2: To help clarify, here is the result I'm getting after casting from a device connecting to my receiver with the above message:

Answer 1

Google responded at: https://code.google.com/p/google-cast-sdk/issues/detail?id=794

And thanks Ali, your suggestion was correct. Using a .ttf font and applying it to the text will allow the characters to show up. It's not the same as having the actual unicode characters show up, but still helps.