Provide an API to set fetch timeout

[ifurnadjiev]

var start = Date.now();
fetch('http://www.eclipsesource.com:1234').then(function(){
  var end = Date.now();
  console.log("Resolved! " + (end - start) );
}).catch(function(){
  var end = Date.now();
  console.log("Rejected!" + (end - start));
});

The snippet above give different results on Android and iOS. On Android fetch rejects in 127 sec, on iOS is 75 sec. These numbers are reproducible all the time.

[mpost]

Is there a difference when making a direct XHR request?

[ralfstx]

Out fetch implementation doesn't set a timeout, so No.

See https://github.com/github/fetch/search?q=timeout

[cookieguru]

Timeout isn't in the fetch spec. Additionally, it's easy to add timeout support with some straightforward wrapper code: JakeChampion/fetch#175 (comment)

[cookieguru]

timeout parameter now available in 2.0.0 RC 1 😃

[mpost]

Hurray :)

[ralfstx]

Right, after wrapping fetch in a timeout-promise one too many times, we realized that this property is really needed.

fetch(url, {
  timeout: 5000 // request timeout in ms
}).then(...);