Exception 'Rendering cancelled, page 1' rendering page with signed url

[NathanVeeva]

Hey, this one might be tricky to figure out. Here is some context. We get an exception thrown during our session timeout. I'm just wondering how this is handled or should be handled. The url we provide to the pdf-viewer is an AWS signed url. Everything loads and renders fine. During a session timeout, we check if the user is still auth, which seems to do a re-render of the component. We do try another attempt to load a url to verify auth, though that fails and we unmount the component.

I've noticed this before but wanted to confirm, Rendering cancelled, page 1 exception is coming from pdfjs-dist. Is the react-pdf library handling this exception? Would you think this exception is coming from the pdfjs trying to reload from the expired signed url and can't? If so (or not), should the onLoadError or maybe another a new onError method be fired to handle these issues? I'm just currently unclear of when this error occurs and how to handle it.

[david-reactpdf]

@NathanVeeva

Thanks for the detailed context.

To better understand your flow, would you be able to share a snippet of how you’re using in this session timeout + auth check scenario? It’d help us see how the viewer is mounted/unmounted, and whether we can surface a more graceful way to handle these expired URL cases via improved error handling.

Feel free to paste the code directly here or share to david@react-pdf.dev if that’s easier.

[NathanVeeva]

@david-reactpdf for this ticket, I want to check our own session timeout to make sure I see the whole picture of the rendering cycles it is going through. I know we have some improvements there. Though I am still wondering if there is a way to tie into the the provider or pdfjs to handle exceptions that pdfjs might be dispatching?

[vuepdfviewer]

@NathanVeeva thank you for the additional information. Prior to v1.9.0, we did see the error you mentioned. From v1.9.0, after improving on PDF loading performance, we are unable to reproduce this error.

Is there a way you could share a code snippet here or share to david@react-pdf.dev?