[Webkit-unassigned] [Bug 272743] New: Responses with code 204 misbehave on Mobile (e.g., COOP is active)
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Apr 16 04:29:18 PDT 2024
https://bugs.webkit.org/show_bug.cgi?id=272743
Bug ID: 272743
Summary: Responses with code 204 misbehave on Mobile (e.g.,
COOP is active)
Product: WebKit
Version: Safari 17
Hardware: Unspecified
OS: iOS 17
Status: NEW
Severity: Normal
Priority: P2
Component: Page Loading
Assignee: webkit-unassigned at lists.webkit.org
Reporter: jannis.rautenstrauch at cispa.de
CC: beidson at apple.com
If a response with status code 204 is opened in a new tab (with window.open), it seems to be treated like about:blank in all browsers (Safari Desktop, Firefox, Chromium) except for Safari Mobile.
On Safari mobile, the response is opened like a normal response and even headers such as COOP take effect.
I would expect the same behavior on mobile and desktop.
Example URL that opens a 204 response with a COOP header: http://sub.headers.websec.saarland/_hp/tests/window-references-coop.sub.html?resp_type=parsing&browser_id=1&label=COOP&first_id=23342&last_id=23342&scheme=http&t_resp_id=23342&t_element_relation=direct_direct&t_resp_origin=https://headers.webappsec.eu
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