Error while loading PDF document

[malte-v]

When I call PDFJS.getDocumentByString, I get the following error:

errors.dart:145 Uncaught (in promise) Error: Type '_Future<dynamic>' should be '_Future<PDFDocumentProxy>' to implement expected type 'Future<PDFDocumentProxy>'.
    at Object.throw_ [as throw] (errors.dart:194)
    at Object.castError (errors.dart:43)
    at Object.cast [as as] (operations.dart:424)
    at Function.check_C [as _check] (classes.dart:512)
    at Object._promiseToFuture (private.dart:33)
    at pdfjs.PDFDocumentLoadingTask._withJsInternal.[_initFuture] (pdf_document_loading_task.dart:31)
    at new pdfjs.PDFDocumentLoadingTask._withJsInternal (pdf_document_loading_task.dart:27)
    at Function.getDocument (pdfjs_global.dart:144)
    at Function.getDocumentByString (pdfjs_global.dart:155)
    at Object.main$ [as main] (main.dart:7)
    at main$ (main_web_entrypoint.dart:9)
    at main$.next (<anonymous>)
    at onValue (async_patch.dart:45)
    at _RootZone.runUnary (zone.dart:1379)
    at _FutureListener.thenAwait.handleValue (future_impl.dart:137)
    at handleValueCallback (future_impl.dart:678)
    at Function._propagateToListeners (future_impl.dart:707)
    at async._AsyncCallbackEntry.new.callback (future_impl.dart:387)
    at Object._microtaskLoop (schedule_microtask.dart:41)
    at _startMicrotaskLoop (schedule_microtask.dart:50)
    at async_patch.dart:166

I'm using pdf.js version 2.1.266. Any idea how to fix this issue? Thanks in advance!

[malte-v]

A minimal working example would really be great!

[seanburke-wf]

This looks like a typing error on our part. A PR is in progress to address this.