Missing secureConnectionStart on PerformanceTiming interface

[euskadi31]

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'.

[euskadi31]

thx @YuichiNukiyama ;)