SERVER
shell ✓
chunk…
chunk…
flushes chunks
as ready
1. request
2a. shell (paints now)
2b. main content chunk
2c. slow widget chunk (last)
streaming main…
widget…
shell instant
CLIENT · BROWSER
TIMELINE
shell paints early · content fills in as chunks arrive
req
shell
chunk · main
chunk · widget
JS download
hydrate