1727053 - PDF Preview shows only a few random characters in iframe; works in non-preview

Status: VERIFIED FIXED

(Firefox :: PDF Viewer, defect)

Description

[İsmail Sarı]

Attachment: actual_expected.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0

Steps to reproduce:

Click to the rfc report which is located on our customer portal.

Actual results:

The report come with weird characters in iframe.

Expected results:

It must be as same as on the attachment.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Firefox::PDF Viewer' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[Sylvestre Ledru [:Sylvestre]]

Could you please provide a PDF example? thanks

Comment 3

[İsmail Sarı]

Attachment: document.pdf

Comment 4

[İsmail Sarı]

Dear Sylvestre Ledru;

I uploaded another report as a attachment.(document.pdf)

There is no character problem when I download the PDF.

The problem is only valid for preview mode.

Comment 5

[Andre Klapper]

Where to see a "character problem" in preview mode?

Comment 6

[İsmail Sarı]

Hello,

You can see in the attachment on actual side. ( actual_expected.png )

Comment 7

[Pablo]

I was able to reproduce this on windows 10 64bit, Mac 10.15 and Ubuntu 20 64bit
Using Release 91.0.2 , beta 92.0b7 and Nightly 93.0a1.

Using other browsers i can see document.pdf as a 1 page document with 2 lines of text, ( not like in actual_expected.png ).
But on firefox i see just a few sybols.

I will set S3 for now, not sure how many pdf documents could be affected.

Comment 8

[İsmail Sarı]

Dear Pablo,

How long does it take to take action? Otherwise, we have to direct our customers to use a different browser. They can't get a slip after their credit card transactions.

BR

Comment 9

[Sylvestre Ledru [:Sylvestre]]

Usually, a few weeks.
However, here, your pdf generator could be improved to handle that better. Maybe it would be a faster workaround for you.

Comment 10

[GitHub Bugzilla PR Linker]

Attachment: Link to GitHub pull-request: https://github.com/mozilla/pdf.js/pull/13949

Comment 11

[GitHub Bugzilla PR Linker]

Attachment: Link to GitHub master push: https://github.com/mozilla/pdf.js/commit/72c34b2964156ef4873140683897f2d0876d6340

Commit merged into master by GitHub
Authored by Jonas Jenwald (Snuffleupagus)

Comment 12

[İsmail Sarı]

Hi,

When will we get an update on firefox? (Firefox93)

Comment 13

[Marco Castelluccio [:marco]]

Firefox 93 is going to be released on October 5th.

Comment 14

[Alexandru Trif, Desktop QA [:atrif]]

Reproduced the issue with 93.0a1 (20210823214128) on Windows 10x64, and by visiting the attached .pdf.
The issue is no longer reproducible with Firefox 93.0b9 (20210923190449) on Windows 10x64, macOS 10.15 and Ubuntu 21.04.