1494258 - "TypeError: c.data.indexOf is not a function" displayed in browser console while playing FarmVille 2

Status: NEW

(Core :: JavaScript Engine, defect, P3)

Description

[Timea Cernea [:tbabos][inactive]]

Attachment: Screenshot for the issue

[Affected versions]:
Nightly 64.0a1 (2018-09-25) (64-bit)
Release 62.0.2 (64-bit)
Beta    63.0b9 (64-bit)

[Affected platforms]:
Windows 10 x 64,  Mac OS 10.13.

[Steps to reproduce]:
1.Launch Firefox with a new profile
2.Open Browser Console
3.Navigate to https://apps.facebook.com/farmville-two/?ref=br_rs and play the game

[Expected result]:
No errors should be displayed in the Browser Console

[Actual result]:
"TypeError: c.data.indexOf is not a function" is continuously displayed.

Comment 1

[laszlo.bialis]

Win 8.1 x64 also encounters this issue.

Comment 2

[David Olah]

Reproducible also on Windows 7 x32

Comment 3

[Timea Cernea [:tbabos][inactive]]

Reproduced on the latest Nightly 66.0a1 (2019-01-08) (64-bit) with Beta Flash Player Shockwave Flash 32.0 d0.
This error is also followed up by a lot of "NS_ERROR_NOT_INITIALIZED:" ones.

Comment 4

[laszlo.bialis]

Reproducible on 67.0a1 20190205023948 on Win 7 x64.

Comment 5

[Jeronimo Torti (Please send NI request to Brindusa Tot)]

Reproducible in Ubuntu 16.04 in Nightly 75.0a1 (2020-02-18) (64-bit).

Comment 6

[Augusto Pace]

Hi,

I was able to reproduce this issue on Ubuntu 18 with Firefox version Nightly 76.0a1 (2020-03-17) (64-bit). Marking that flag as affected.