demo · v135
Reason name migration tool
Paste a JSON dump of PerformanceNavigationTiming.notRestoredReasons from a pre-135 capture and watch every legacy reason name get rewritten to the Chrome 135 spelling. Use it on archived RUM data so historical charts still match the live API.
notRestoredReasons: ?
rename table
| pre-135 | 135+ | note |
|---|---|---|
| masked | masked | unchanged |
| sandboxed | sandboxed | unchanged |
| cache-control-no-store | response-cache-control-no-store | renamed for parity |
| response-cache-control-no-cache | response-cache-control-no-cache | unchanged |
| websocket | websocket-active | renamed to clarify state |
| related-active-contents | related-active-contents | unchanged |
| frame-mismatch | browsing-context-group-mismatch | renamed to match spec |
migrated output will appear here