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chore(git): sync with main#31111

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May 4, 2026
Merged

chore(git): sync with main#31111
ShaneK merged 4 commits into
major-9.0from
sync-major-9.0-with-main

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@ShaneK ShaneK commented May 4, 2026

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Sync major-9.0 with main.

ShaneK and others added 4 commits April 30, 2026 16:27
Issue number: internal

---------

<!-- Please do not submit updates to dependencies unless it fixes an
issue. -->

<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->

## What is the current behavior?

`generate_dir_index` in `core/scripts/vercel-build.sh` writes child
links like `<a href="basic/">` and an up-link `<a href="../">`. Vercel
doesn't 308-redirect to add a trailing slash, so visiting a preview
directory URL like `/src/components/progress-bar/test` (no slash)
returns the index page but the browser resolves `basic/` against the
parent directory. That path doesn't exist, and Vercel's fallback serves
the root landing page, so navigation looks like it "circles back" to the
preview home instead of opening the test scenario.

## What is the new behavior?

The dir-index generator now emits absolute hrefs based on the
directory's `url_path`, including the `../` up-link. Trailing-slash
quirks no longer affect navigation between component test scenarios on
Vercel previews.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!--
  If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
  2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#footer
for more information.
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## Other information

Test page:

-
https://ionic-framework-git-fix-vercel-preview-links-ionic1.vercel.app/src/components/progress-bar/test

Versus the broken version on main:

-
https://ionic-framework-git-main-ionic1.vercel.app/src/components/progress-bar/test
…class on initial entry (#31108)

Issue number: internal

---------

## What is the current behavior?
`ion-datetime` runs two IntersectionObservers: one to detect when the
host becomes visible (which adds `datetime-ready`) and one to detect
when it becomes hidden (which removes the class and tears down
listeners). When the host mounts offscreen, both observers receive an
initial "not intersecting" entry on `observe()`. The hidden-state
observer treats that initial entry as a real visible-to-hidden
transition, queues a `writeTask` to remove `datetime-ready`, and races
the layout-based fallback (`ensureReadyIfVisible`) that adds the class
after 100ms. On WebKit the remove wins often enough that the e2e test
for the fallback (added in #30793 to fix #30706) had to be skipped on
Mobile Safari. Anything in production that adds `datetime-ready` outside
of a real `isIntersecting: true` event is exposed to the same race.

## What is the new behavior?
A `hasBeenIntersecting` flag is set true only when `visibleCallback`
observes `isIntersecting: true`. The hidden-state observer's teardown is
gated on this flag, so the synthetic initial "not intersecting" entry is
ignored. The flag is reset when the host actually transitions to hidden
and on `disconnectedCallback`. The previously duplicated init-listeners
+ ready-class block is consolidated into a single `markReady` helper.
The WebKit skip on the IO-fallback e2e test has been removed.

## Does this introduce a breaking change?
- [ ] Yes
- [x] No

<!-- If yes, please describe the impact and migration path for existing
applications below. -->

## Other information
The asymmetry where `ensureReadyIfVisible` (the layout fallback)
deliberately does NOT set `hasBeenIntersecting` is load-bearing: the
flag must reflect a real observer signal, not a fallback-driven write,
otherwise the bug returns. This is called out at the guard site so
future cleanups don't undo it.

This test was most likely to fail in docker testing Linux Webkit with
`--repeat-each=20` because it was pretty flaky. I was able to force it
to fail under these conditions and, after fixing it, it no longer
failed.

## Relevant Preview Link:

-
https://ionic-framework-git-fw-7284-ionic1.vercel.app/src/components/datetime/test/basic
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[pozil/auto-assign-issue](https://redirect.github.com/pozil/auto-assign-issue)
| action | major | `v2.2.0` → `v3.0.0` |

---

### Release Notes

<details>
<summary>pozil/auto-assign-issue (pozil/auto-assign-issue)</summary>

###
[`v3.0.0`](https://redirect.github.com/pozil/auto-assign-issue/releases/tag/v3.0.0):
- Switch to EcmaScript Module

[Compare
Source](https://redirect.github.com/pozil/auto-assign-issue/compare/v2.2.0...v3.0.0)

- feat: switch to EcmaScript Module
- build: bump dependencies

</details>

---

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are satisfied.

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🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/ionic-team/ionic-framework).

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
@ShaneK ShaneK requested a review from a team as a code owner May 4, 2026 17:12
@ShaneK ShaneK requested a review from brandyscarney May 4, 2026 17:12
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Project Deployment Actions Updated (UTC)
ionic-framework Ready Ready Preview, Comment May 4, 2026 5:18pm

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@github-actions github-actions Bot added the package: core @ionic/core package label May 4, 2026
@ShaneK ShaneK merged commit 5ec8eaf into major-9.0 May 4, 2026
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@ShaneK ShaneK deleted the sync-major-9.0-with-main branch May 4, 2026 19:42
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