GAPI insert call works on Android, but fails on iOS (using PhoneGap, and Javascript)

Before reading on: Please keep in mind that this code works on Android devices but not on iPhones, so my question is what I need to adapt to make it work on both. I am working on an application for both Android and iOS, using PhoneGap as the bridge. The goal is to fill out a table and click submit, and have it save a file to Google Drive with the data from the table. I currently have the sign-in portion working and tested both on Android and iOS. The next step is to get the call to Google's Insert method (from gapi) working. Below is the code that I have. I will comment it so it is (hopefully) easily read. // print the message to the console, and also add it to the fake log // so that the message can be seen in the application (because mobile // devices don't have a console). function log(mess) { $('#logs').prepend('<pre>' + mess + '</pre>'); console.log(mess); } // This function is called when the 'Create File' button is clicked. // For now, it only creates a blank file, but will be modified to // create a file with a particular title and contents. // Note that it currently only calls insertNewFile function createFile() { log("Called createFile!"); log("Calling insertNewFile..."); insertNewFile(); } // This function is the callback function, which is called by the // gapi Insert request once the request finishes. // All it does is print the returning file (to make sure it was // created) function createFileCallback(file) { log("Called createFileCallback!"); log(JSON.stringify(file)); } // This is the function called when the button is clicked. // Currently, it creates a file with a single space character, // and sets the type to be "text/plain" function insertNewFile() { log("Called insertNewFile!"); // Create a variable with the intended contents var content = " "; // Create a variable to store the converted contents var contentArray = new Array(content.length); for (var i = 0; i < contentArray.length; i++) { contentArray[i] = content.charCodeAt(i); } var byteArray = new Uint8Array(contentArray); // create a variable with the contents type var conType = "text/plain"; // Create a 'Blob' // Not entirely sure how this works, but it stores the file // data, and is passed to the GAPI Insert method var blob; // On some verions of android, the Blob() constructor is illegal, // so catch the error and use the old version of it (BlobBuilder) try { blob = new Blob([byteArray], {type: conType}); } catch (error) { log("Creating the Blob failed!"); log("Trying with a BlobBuilder..."); BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder; var tmpBlob = new BlobBuilder(); tmpBlob.append(byteArray); blob = tmpBlob.getBlob(conType); } log("Calling insertFile!"); insertFile(blob, createFileCallback); } // The following is the function provided by Google (see link to // documentation below // The only difference is the 'log()' calls that I added for testing function insertFile(fileData, callback) { log("called insertFile!"); const boundary = '-------314159265358979323846'; const delimiter = "rn--" + boundary + "rn"; const close_delim = "rn--" + boundary + "--"; log("Generating FileReader..."); var reader = new FileReader(); reader.readAsBinaryString(fileData); log("Setting FileReader.onload..."); reader.onload = function(e) { log("Called FileReader.onload!"); var contentType = fileData.type || 'application/octet-stream'; var metadata = { 'title': "untitled.txt", 'mimeType': contentType }; var base64Data = btoa(reader.result); var multipartRequestBody = delimiter + 'Content-Type: application/jsonrnrn' + JSON.stringify(metadata) + delimiter + 'Content-Type: ' + contentType + 'rn' + 'Content-Transfer-Encoding: base64rn' + 'rn' + base64Data + close_delim; log("Request is:"); log(multipartRequestBody); var request = gapi.client.request({ 'path': '/upload/drive/v2/files', 'method': 'POST', 'params': {'uploadType': 'multipart'}, 'headers': { 'Content-Type': 'multipart/mixed; boundary="' + boundary + '"' }, 'body': multipartRequestBody}); if (!callback) { callback = function(file) { log(file); }; } log("Excuting request..."); log(JSON.stringify(request, null, 4)); request.execute(callback); } } Here is the link to Google's documentation, and the exact function you see above. As I said above, this works on Android devices. The log("Called createFileCallback!"); message is printed, and the file is created in Google drive. However, on iOS devices, the last thing printed is the log(JSON.stringify(request, null, 4)); (4 lines from the end). The callback message is never printed, and the file is never created in drive. Any idea what I am doing wrong?