Blank first page (canvasWrapper)

[YaromichSergey]

Describe the bug
From time to time(1 in 20 tries) after loading library first page is blank:

1. Go to open any document with 1 page, 2+ pages
2. From time to time first page is blank

After checking

Version info

• Version 25.6.4

I guess on version 23.0.0 - I didn't have this bug.

After checking html structure - I realized that canvasWrapper is empty in case of bad load. Do you have some changes in process of loading and initializing library? What can we do? (may be trigger change detection in some callbacks or anything else?)

[stephanrauh]

That's weird. The text layer is not empty, so the document is loaded and rendered correctly. Do you see any error messages in the console? Maybe the canvas renderer has a problem.

I didn't change anything related to your issue, but I've updated pdf.js. Maybe it's an issue of the base library.

[YaromichSergey]

More details about issue. Especially second error with cannot perform Construct on a detached ArrayBuffer which reproducible and cause issues with blank file at all not only first page

[stephanrauh]

The first error message is caused by my code. The other two are not, unless they are follow-up errors.

You could try version 26.0.0-alpha.0. Does it show the same bug?

[YaromichSergey]

In new version I have got this issues (on version 26.0.0-alpha.0). On version 25.6.4 I don't see this issues

[stephanrauh]

I might have found the bug. If that's true, it's astonishing: the library has been suffering three years from the bug without anybody complaining.