1595621 - webNavigation.TransitionQualifier is empty instead of "client_redirect"

Status: NEW

(WebExtensions :: Request Handling, defect, P3)

Description

[kernp25]

Attachment: manifest.zip

1. Install test add-on
2. Open Solicitud_beca_Toyota_2019_2020.doc

Actual results:
transitionQualifiers is empty for https://view.officeapps.live.com/op/errorpage.htm?llcc=de-DE

Expected results:
transitionQualifiers should have "client_redirect" for https://view.officeapps.live.com/op/errorpage.htm?llcc=de-DE

In Google Chrome it works as expected:
target URL: https://view.officeapps.live.com/op/errorpage.htm?llcc=en-US
transition type: link
transition qualifiers: client_redirect

Comment 1

[Alex Cornestean]

Hello,

I have managed to reproduce the issue based on the provided STR on the latest Nightly (72.0a1/20191113215041), Beta (71.0b9/20191111170815) and Release (70.0.1/20191030021342) under Windows 10 Pro 64-bit and MacOS Catalina 10.15.

The transitionQualifiers is indeed empty after loading the link from Step 2.

Comment 2

[Luca Greco [:rpl] [:luca] [:lgreco]]

This is a known limitation of the webNavigation.TransitionQualified on Firefox, and so it isn't a regression as it is a limitation documented since the original implementation landed in 48.

This limitation is mentioned in the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/TransitionQualifier, it becomes visible by expanding in the table the notes related to the Firefox entry:

'server_redirect' is limited to top-level frames and 'client_redirect' is not supplied when redirections are created by JavaScript.

(which means that we currently set 'client_redirect' when a page is refreshed "refresh" pragma in the page's meta tag, but not when the page is being redirected from javascript code running in the page).