Sounds good - LGTM
On 7/18/25 4:10 a.m., Rakina Zata Amni wrote:
Ok. I think this will be quite iterative and we'll try to figure out
the exact set of customizations and optimizations during the origin
trial, so if we can just request 6 milestones from the start maybe
that's ideal (139-144). Thanks!
Regards,
Rakina
On Fri, Jul 18, 2025, 02:07 Mike Taylor <miketa...@chromium.org> wrote:
Thanks - you can request an OT for up to 6 milestones
<https://www.chromium.org/blink/launching-features/#:~:text=An%20initial%20origin%20trial%20or%20experiment%20for%20a%20feature%20may%20only%20run%20for%206%20milestones%20of%20Chromium>,
but you will know better what makes sense for your feature. 3
might make sense, or more. Please let us know. :)
On 7/16/25 7:07 p.m., Rakina Zata Amni wrote:
Oh sorry, I didn't realize there's a different field for OT. I'm
requesting OT from 139. Not sure how many versions typically OTs
should last for (3 milestones)?
On Thu, Jul 17, 2025 at 2:57 AM Mike Taylor
<miketa...@chromium.org> wrote:
Could you clarify which milestones you're requesting to
experiment on? (Right now it just shows DevTrial on 139)
On 7/16/25 11:31 a.m., Chromestatus wrote:
Contact emails
rak...@chromium.org, m...@chromium.org
Explainer
https://github.com/explainers-by-googlers/fetch-retry/tree/main
Specification
None
Design docs
https://docs.google.com/document/d/1C9lAn3tqXsrjxiid1qCC9qSL7jfA1PZdoo2lgL8L5Pw/edit?tab=t.0
Summary
Allow web developers to indicate that a fetch() request
should be retried, to have a greater guarantee on it being
reliably sent, even if network is flaky. This is especially
important for keepalive fetches, where the request might
outlive the document, which can no longer watch for its
failure and do manual retry. We intend to only support this
for keepalive fetches for now because of implementation
simplicity, and also the fact that all the use cases would
benefit from being keepalive first.
Blink component
Blink>Loader
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELoader%22>
TAG review
None
TAG review status
Pending
Risks
Interoperability and Compatibility
None
/Gecko/: No signal
/WebKit/: No signal
(https://github.com/whatwg/fetch/issues/1838) Safari devs
have responded in the proposal thread and gave constructive
feedback and doesn't seem to be opposed.
/Web developers/: Positive
(https://github.com/whatwg/fetch/issues/1838#issuecomment-3035074583)
Internal developers interested in origin trial. External
developers have proposed a similar feature/made libraries
similar to this, and generally seems interested in the
proposal thread.
/Other signals/:
Security
Resource Exhaustion: Malicious or misconfigured sites could
attempt to trigger excessive retries, potentially impacting
network resources or target servers. Mitigation relies on
browsers enforcing strict, reasonable limits on maxAttempts
and maxAge, alongside implementing backoff delays. Timing
Attacks/Information Leakage: The timing patterns of retry
attempts could theoretically leak some information about
network conditions. This is unlikely to provide
substantially more information than can already be inferred
by observing standard network request timings and failures.
Additionally the browser will ensure that the errors are not
exposed to the script until max age set in the retry options
is reached, regardless of whether a retry happened or not,
and only the latest error is exposed instead of all
attempts.The risk is considered low.
WebView application risks
Does this intent deprecate or change behavior of existing
APIs, such that it has potentially high risk for Android
WebView-based applications?
None
Goals for experimentation
Ongoing technical constraints
None
Debuggability
None
Will this feature be supported on all six Blink
platforms (Windows, Mac, Linux, ChromeOS, Android,
and Android WebView)?
Yes
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
No
This feature is essentially invisible to the script
initiating the fetch since it can't know if a retry happened
or not.
Flag name on about://flags
Finch feature name
FetchRetry
Requires code in //chrome?
False
Tracking bug
https://crbug.com/417930271
Estimated milestones
DevTrial on desktop 139
DevTrial on Android 139
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5181984581877760?gate=5140384199737344
Links to previous Intent discussions
Intent to Prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CACPC1r6QFoqcmdoEMeG4JKJXGLqvGW%2BMr-UZj%2Br6HrQ%3DTNqKYQ%40mail.gmail.com
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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