2 * Expects an object containing a blob, a start index and an end index
3 * for slicing. Returns the contents of the blob read as text.
5 onmessage = function (event) {
6 var blob = event.data.blob;
7 var start = event.data.start;
8 var end = event.data.end;
10 var slicedBlob = blob.slice(start, end);
12 var fileReader = new FileReaderSync();
13 var text = fileReader.readAsText(slicedBlob);