blob does not accept Uint8Array on ios

Question

I try to create a Blob object and pass an Uint8Array to it’s constructor It works fine on chrome and firefox on windows In chrome and safari on ios however the Blod does no

Answer 1

I'm struggling with the exact same problem. When I backup the Uint8Array with an ArrayBuffer, it does work in both Safari and Chrome (not tested in other browsers yet) but Chrome prints a warning message. Chrome says I have to wrap ArrayBuffer in a DataView before passing it to Blob() constructor.

// write the bytes of the string to an ArrayBuffer
var ab = new ArrayBuffer(byteString.length);
var ia = new Uint8Array(ab);
for (var i = 0; i < byteString.length; i++) {
    ia[i] = byteString.charCodeAt(i);
}

new Blob([ab], {type: mimeString});

Edit

The exact Chrome deprecation message is:

ArrayBuffer values are deprecated in Blob Constructor. Use ArrayBufferView instead.