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I get the wish to click the shadow but not all child boundaries are within the bounds of the outer Suspense boundary's node.

Sometimes they overflow naturally and if we make it overflow hidden we hide the boundaries. Maybe it would be ok if they're actually clipped by the real DOM but right now it covers up boundaries that should be there.

Additionally, there's also a common case where the parent boundary shrinks when suspending the children. That then causes the suspended child boundaries to be clipped so that you can't restore them. Maybe the virtual boundary shouldn't shrink in this case.

@sebmarkbage sebmarkbage requested a review from eps1lon October 15, 2025 02:37
@meta-cla meta-cla bot added the CLA Signed label Oct 15, 2025
@github-actions github-actions bot added the React Core Team Opened by a member of the React Core Team label Oct 15, 2025
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I didn't like that originally but it was the only way to clip of the box shadow which looks bad if stacked.

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Maybe we could clip it only if the child rects are fully within the bounds (minus drop shadow).

@sebmarkbage sebmarkbage merged commit 5747cad into facebook:main Oct 15, 2025
246 of 247 checks passed
hoxyq added a commit that referenced this pull request Oct 20, 2025
Full list of changes:

* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[#34925](#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[#34915](#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[#34913](#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[#34921](#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[#34922](#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[#34918](#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[#34916](#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34907](#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[#34898](#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[#34893](#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34892](#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[#34885](#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[#34881](#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[#34894](#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[#34880](#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[#34876](#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[#34878](#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[#34873](#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[#34870](#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[#34869](#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[#34867](#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [#34860](#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[#34861](#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[#34859](#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[#34854](#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[#34853](#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[#34852](#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[#34851](#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[#34850](#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[#34828](#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[#34756](#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[#34830](#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[#34829](#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[#34827](#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[#34824](#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[#34823](#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[#34796](#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[#34792](#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[#34754](#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[#34712](#34712))
github-actions bot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:

* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[facebook#34925](facebook#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[facebook#34915](facebook#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[facebook#34913](facebook#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34921](facebook#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34922](facebook#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34918](facebook#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[facebook#34916](facebook#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34907](facebook#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[facebook#34898](facebook#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34893](facebook#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34892](facebook#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34885](facebook#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34881](facebook#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34894](facebook#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34880](facebook#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34876](facebook#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34878](facebook#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34873](facebook#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34870](facebook#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34869](facebook#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34867](facebook#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [facebook#34860](facebook#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34861](facebook#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34859](facebook#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34854](facebook#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34853](facebook#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34852](facebook#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34851](facebook#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34850](facebook#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34828](facebook#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[facebook#34756](facebook#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34830](facebook#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34829](facebook#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34827](facebook#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34824](facebook#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34823](facebook#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[facebook#34796](facebook#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[facebook#34792](facebook#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[facebook#34754](facebook#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[facebook#34712](facebook#34712))

DiffTrain build for [3cde211](facebook@3cde211)
github-actions bot pushed a commit to code/lib-react that referenced this pull request Oct 24, 2025
Full list of changes:

* Text layout fixes for stack traces with badges
([eps1lon](https://github.com/eps1lon) in
[facebook#34925](facebook#34925))
* chore: read from build/COMMIT_SHA fle as fallback for commit hash
([hoxyq](https://github.com/hoxyq) in
[facebook#34915](facebook#34915))
* fix: dont ship source maps for css in prod builds
([hoxyq](https://github.com/hoxyq) in
[facebook#34913](facebook#34913))
* Lower case "rsc stream" debug info
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34921](facebook#34921))
* BuiltInCallSite should have padding-left
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34922](facebook#34922))
* Show the Suspense boundary name in the rect if there's no overlap
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34918](facebook#34918))
* Don't attach filtered IO to grandparent Suspense
([eps1lon](https://github.com/eps1lon) in
[facebook#34916](facebook#34916))
* Infer name from stack if it's the generic "lazy" name
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34907](facebook#34907))
* Use same Suspense naming heuristics when reconnecting
([eps1lon](https://github.com/eps1lon) in
[facebook#34898](facebook#34898))
* Assign a different color and label based on environment
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34893](facebook#34893))
* Compute environment names for the timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34892](facebook#34892))
* Don't highlight the root rect if no roots has unique suspenders
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34885](facebook#34885))
* Highlight the rect when the corresponding timeline bean is hovered
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34881](facebook#34881))
* Repeat the "name" if there's no short description in groups
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34894](facebook#34894))
* Tweak the rects design and create multi-environment color scheme
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34880](facebook#34880))
* Adjust the rects size by one pixel smaller
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34876](facebook#34876))
* Remove steps title from scrubber
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34878](facebook#34878))
* Include some sub-pixel precision in rects
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34873](facebook#34873))
* Don't pluralize if already plural
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34870](facebook#34870))
* Don't try to load anonymous or empty urls
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34869](facebook#34869))
* Add inspection button to Suspense tab
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34867](facebook#34867))
* Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage)
in [facebook#34860](facebook#34860))
* Don't highlight on timeline
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34861](facebook#34861))
* The bridge event types should only be defined in one direction
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34859](facebook#34859))
* Attempt at a better "unique suspender" text
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34854](facebook#34854))
* Track whether a boundary is currently suspended and make transparent
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34853](facebook#34853))
* Don't hide overflow rectangles
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34852](facebook#34852))
* Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34851](facebook#34851))
* Don't measure fallbacks when suspended
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34850](facebook#34850))
* Filter out built-in stack frames
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34828](facebook#34828))
* Exclude Suspense boundaries in hidden Activity
([eps1lon](https://github.com/eps1lon) in
[facebook#34756](facebook#34756))
* Group consecutive suspended by rows by the same name
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34830](facebook#34830))
* Preserve the original index when sorting suspended by
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34829](facebook#34829))
* Don't show the root as being non-compliant
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34827](facebook#34827))
* Ignore suspense boundaries, without visual representation, in the
timeline ([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34824](facebook#34824))
* Explicitly say which id to scroll to and only once
([sebmarkbage](https://github.com/sebmarkbage) in
[facebook#34823](facebook#34823))
* devtools: fix ellipsis truncation for key values
([sophiebits](https://github.com/sophiebits) in
[facebook#34796](facebook#34796))
* fix(devtools): remove duplicated "Display density" field in General
settings ([Anatole-Godard](https://github.com/Anatole-Godard) in
[facebook#34792](facebook#34792))
* Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in
[facebook#34754](facebook#34754))
* Release `<ViewTransition />` to Canary
([eps1lon](https://github.com/eps1lon) in
[facebook#34712](facebook#34712))

DiffTrain build for [3cde211](facebook@3cde211)
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