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 |   1 <!DOCTYPE html> | 
 |   2 <html> | 
 |   3 <title>Service Workers: event.waitUntil(f)</title> | 
 |   4     <head> | 
 |   5         <link rel="help" href="https://w3c.github.io/ServiceWorker/#wait-until-m
    ethod"> | 
 |   6         <script src="/resources/testharness.js"></script> | 
 |   7         <script src="/resources/testharnessreport.js"></script> | 
 |   8  | 
 |   9     </head> | 
 |  10     <body> | 
 |  11  | 
 |  12 <!-- | 
 |  13  | 
 |  14 `event.waitUntil(f)` method, when called in `oninstall` or `onactivate`, | 
 |  15 extends the lifetime of the event. When called in `oninstall`, it delays | 
 |  16 treating the installing worker until the passed [Promise][1] resolves | 
 |  17 successfully. This is primarily used to ensure that a `ServiceWorker` is not | 
 |  18 active until all of the core caches it depends on are populated. When called in | 
 |  19 `onactivate`, it delays treating the activating worker until the passed | 
 |  20 [Promise][1] resolves successfully. This is primarily used to ensure that any | 
 |  21 [Functional events][2] are not dispatched to the `ServiceWorker` until it | 
 |  22 upgrades database schemas and deletes the outdated cache entries. | 
 |  23  | 
 |  24 [1]: http://goo.gl/3TobQS | 
 |  25 [2]: #functional-events | 
 |  26  | 
 |  27 --> | 
 |  28  | 
 |  29  | 
 |  30  | 
 |  31     <script> | 
 |  32         test(function() { | 
 |  33             // not_implemented(); | 
 |  34         }, "There are no tests for section event.waitUntil(f) so far."); | 
 |  35     </script> | 
 |  36  | 
 |  37     </body> | 
 |  38 </html> | 
 |  39  | 
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