PDF Embed API issue

Hi All,

We started getting the following error recently:

DataCloneError: Failed to execute 'postMessage' on 'Window': #<Promise> could not be cloned.

when calling the getPDFMetadata() method.

Here’s the code:

previewFilePromise.then((adobeViewer) => {
        adobeViewer.getAPIs().then((apis) => {
          // All viewer APIs can be invoked here
          apis.getPDFMetadata().then((result) => {
            numPages = result.numPages;
            pdfTitle = result.pdfTitle;
          });
          .catch((error) => console.log(error));
        });
      });

The pdf displays correctly in the viewer however the getMetadata() method fails and we can’t get the number of pages, … 

Is anyone having this issue?