Unable to login to Instagram

[ryanbr]

Description

Unable to login to instagram.com

Steps to Reproduce

1. Open https://www.instagram.com
2. Click on Log in with Facebook
3. Enter your Facebook user details.
4. When it attempts to load, it will show a blank, white page.

Actual result:

Expected result:

Allow user to login too Instagram without changing shield Settings

Reproduces how often:

Easily

Brave version (brave://version info)

Version 1.20.108 Chromium: 88.0.4324.182 (Official Build) (64-bit)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? Yes (Allow Cookies)

Miscellaneous Information:

Enabling Ephemeral Storage didn't fix the issue here.

[ryanbr]

Further testing in exceptions on cookie_settings_base.cc Allowing cookies between instagram.com and facebook.com. No blocked facebook cookies in shields after this change

White screen still shows on: https://www.instagram.com/accounts/signup/ But if you refresh the blank signup page the user is presented with "Continue with Facebook username", and then the user can continue using instagram.

Once a facebook login/cookie is set, the blank screen will no longer show.

[pes10k]

@ryanbr short term can we add an instagram <-> facebook cookie exceptions to solve this, and then create a follow up issue to dig into further?

[lxwulf]

I have the same problem, have the login screen, but it reloads after press the enter key, can't type in the 2FA!

[lxwulf]

I can log in again on the newest nightly version so for me, it is solved.

Greets

LxWulf

[ryanbr]

Further investigation of the "Blank page" after login issue. Not actually a Brave issue. Was able to reproduce in both Firefox and Chrome (Clearing cookies, uBO disabled/enabled made difference) Seems to an issue on their side. @pes10k

[stephendonner]

Verified PASSED using nightly build on instagram.com

Brave	1.24.14 Chromium: 89.0.4389.90 (Official Build) nightly (x86_64)
Revision	62eb262cdaae9ef819aadd778193781455ec7a49-refs/branch-heads/4389@{#1534}
OS	macOS Version 11.2.3 (Build 20D91)

Used the following steps:

1. loaded instagram.com
2. clicked on Log in with Facebook
3. logged in using Facebook credentials
4. was redirected back to instagram.com, where I now had a logged-in session
5. verified that cookies for instagram.com and facebook.com were set

Example	Example	Example	Example

---

Verification passed on

Brave | 1.24.69 Chromium: 90.0.4430.72 (Official Build) dev (64-bit)
-- | --
Revision | b6172ef8d07ef486489a4b11b66b2eaeed50d132-refs/branch-heads/4430@{#1233}
OS | Windows 10 OS Version 2004 (Build 19041.928)

Verified the STR from the description and ensured able to log in Instagram

---

Verification passed on

Brave	1.24.70 Chromium: 90.0.4430.72 (Official Build) beta (64-bit)
Revision	b6172ef8d07ef486489a4b11b66b2eaeed50d132-refs/branch-heads/4430@{#1233}
OS	Ubuntu 18.04 LTS

Verified the STR from the description and ensured able to log in Instagram