Our second domain isn't connecting properly

PDF.js Express Version

Detailed description of issue
We are currently wanting to have two domains for our site. We have our first domain that is setup and works correctly but our second domain is causing us some issues. We have purchased two PDF.js licenses but don’t see how we set up a second API license. Last time we had an issues with our first domain and i submitted a ticket and it seemed to have issues on your guys end so i am wondering if the same thing is happening.

Expected behaviour
Suppose to take out the water marks and be the purchase version.
Does your issue happen with every document, or just one?

Link to document
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Code snippet
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