1752578 - "Flight selection" form does not load on in "Private window" mode

Status: RESOLVED FIXED

(Core :: Privacy: Anti-Tracking, defect, P3)

Description

[Oana Arbuzov [:oanaarbuzov]]

Attachment: PrivateVSNormal.png

Environment:
Browser / Version: Firefox Nightly 98.0a1 (2022-01-28)
Operating System: Windows 10 Pro

Steps to reproduce:

1. Open a "Private window".
2. Navigate to https://www.flygbussarna.se/
3. Observe "Flight selection" form

Expected Behavior:
The form loads correctly and I can perform a flight search.

Actual Behavior:
The form remains in loading state.

Notes:

1. Screenshot attached.
2. The issue is not reproducible in "Normal window" mode.
3. The issue is reproducible on "Private window" mode regardless of the ETP status.

Comment 1

[Thomas Wisniewski [:twisniewski][PTO until the 26th]]

They are trying to use the DOM cache API, which doesn't yet work in private browsing mode (but does in Strict ETP mode).

Comment 2

[Thomas Wisniewski [:twisniewski][PTO until the 26th]]

Oana, the form seems to load and work for me in private browsing now. It looks like they fixed their bug with the cache API. Could you confirm if it seems ok on your end as well? If so we can close this one.

Comment 3

[Oana Arbuzov [:oanaarbuzov]]

Indeed, it loads now, and I can perform a search.
https://prnt.sc/snLEn7nZXtfl
https://prnt.sc/Ri3KvFLj_w0j

Tested with:
Browser / Version: Firefox Nightly 103.0a1 (2022-06-16)
Operating System: Windows 10 Pro