Undefined or 0 as page number on onBboxesParsed

[uxmanashraf]

Hi,

The page numbers returned as parameter on onBboxesParsed callback are sometimes undefined or zero. And sometimes, callback onBboxesParsed is called twice, on first call, some of the page numbers are undefined and on second instance there are page numbers. An example pdf is attached where we're facing the 0 or undefined page numbers.
Example_PDF_1.pdf

From another pdf file, I'm attaching the console log where there were undefined page number and on next callback, there were page numbers. This was captures in strict mode and timestamps are visible too.