cachaito
10/29/2015 - 1:09 PM

Promies .catch()

Promies gotcha za: http://bytearcher.com/articles/using-promise-then-callback-callback-misses-errors/

promies error handling.js
content_copyfile_download
//Exception in success handler goes unnoticed
promise.then(callback, callback);

//This way exception in the success handler will be propagated to the correct place.
promise
    .then(callback)
    .catch(callback);