fetchArrayBuffer
Asynchronously loads the resource as raw binary data. Returns a promise that will resolve to an ArrayBuffer once loaded, or reject if the resource failed to load. The data is loaded using XMLHttpRequest, which means that in order to make requests to another origin, the server must have Cross-Origin Resource Sharing (CORS) headers enabled.
// load a single URL asynchronously
resource.fetchArrayBuffer().then(function(arrayBuffer) {
// use the data
}).catch(function(error) {
// an error occurred
});
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Return
a promise that will resolve to the requested data when loaded. Returns undefined if request.throttle
is true and the request does not have high enough priority.