Which product are you using?
PDF.js Express Viewer
PDF.js Express Version
Detailed description of issue
An error telling me that it connot render the component twice on the same html element.
As I’m following the simple setup for the react integration, I think this doesn’t need any code snippet.
All I’m doing basically is following the setup of the documentation, the only thing that might be different is the fact that I have Strict Mode enabled.