Test opaque header for iOS Safari navigation flicker - #2
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Closing this fork-only comparison PR. The diagnostic branch needs to target reactjs/react.dev:main so it receives the normal preview deployment. |
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Test purpose
This draft isolates one experiment on top of the Next 16 upgrade branch to diagnose the header flash during Back and Forward navigation in iOS Safari.
Experiment 1
If the flicker disappears, the issue is in Safari compositing the translucent or blurred sticky header. If it remains, the next experiment will isolate sticky positioning and history restoration.
This is a temporary diagnostic PR and is not intended to merge as-is.