PDFJS Express Webviewer Error 'Can't read 'Struct''

PDF.js Express Version
Latest we just signed up, using express utility API

Detailed description of issue
On loading the PDFJS Express Webviewer we are getting issue "Can’t read ‘Struct’, see attachment

Expected behaviour
It should upload the document to our portal

Does your issue happen with every document, or just one?
document attached, happened with multiple

Link to document

Treatment.pdf (426.8 KB)

Code snippet

Hey there,

This is an error that happened in 7.1.* versions, but was fixed in 7.2.

Can you please confirm you are using 7.2?