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Summary
The PerformanceTiming.fetchStart read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, the browser is ready to fetch the document using an HTTP request. This moment is before the check to any application cache.
Syntax
time = performanceTiming.fetchStart;
Specifications
| Specification | Status | Comment |
|---|---|---|
| Navigation Timing The definition of 'PerformanceTiming.fetchStart' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 6.0 | 7.0 (7.0) | 9.0 | 15.0 | Not supported |
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | Not supported | 7.0 (7.0) | 1.0 (7.0) | 9.0 | 15.0 | Not supported |
See also
- The
PerformanceTiminginterface it belongs to.PerformanceTiming.fetchStart