Description
See: https://developer.mozilla.org/en-US/docs/Web/API/PerformanceTiming/secureConnectionStart
TypeScript Version: 1.6.1
Code
let timing: PerformanceTiming;
timing.secureConnectionStart = window.performance.timing.secureConnectionStart;
Expected behavior:
Everything typechecks.
Actual behavior:
Error TS2339: Property 'secureConnectionStart' does not exist on type 'PerformanceTiming'.