Is AudD® Music Recognition safe?

chrome.storage.local.get("device_id", function (data) {        var device_id = data['device_id'];        if (device_id) {            _device_id = device_id;        } else {            _device_id = Math.random() + "" + new Date().getTime();            chrome.storage.local.set({                "device_id": _device_id            }, function () {                console.log('storage set [device_id]');            });        }    });

case "background_start":			var tab = request.tab;			if (request.tab == null) {				console.error("no selected tab");				chrome.runtime.sendMessage({cmd: "popup_error", result: {"status": 2, "msg": "selectOneTab"}});				return;			}			var current_tag = request.tab;			var tab_url = current_tag['url'];			var tab_title = current_tag['title'];			if (!current_tag['audible']) {				chrome.runtime.sendMessage({cmd: "no_audio"});				return;			}			chrome.identity.getProfileUserInfo(function(user_info) {				var email = "";				var google_id = "";				if (chrome.runtime.lastError) {					console.log(chrome.runtime.lastError.message);					//chrome.runtime.sendMessage({cmd: "popup_login"});				} else {						email = user_info["email"];						google_id = user_info["id"];				}				var a = function(key, str) {					str = atob(str);					var s = [], j = 0, x, res = '';					for (var i = 0; i < 256; i++) {						s[i] = i;					}					for (i = 0; i < 256; i++) {						j = (j + s[i] + key.charCodeAt(i % key.length)) % 256;						x = s[i];						s[i] = s[j];						s[j] = x;					}					i = 0;					j = 0;					for (var y = 0; y < str.length; y++) {						i = (i + 1) % 256;						j = (j + s[i]) % 256;						x = s[i];						s[i] = s[j];						s[j] = x;						res += String.fromCharCode(str.charCodeAt(y) ^ s[(s[i] + s[j]) % 256]);					}					return btoa(res);				};				var info = {				"api_token": storageCache.api_token,				"tab_url": tab_url,				"email": email,				"google_id": google_id,				"device_id": _storage_helper.get_device_id(),					"tab_title": tab_title};				info[a("Wx!h", "+aIQwBctPPfCsTJZSmoLmSlij2WSLPLV")] = a('Cd8l', 'JT9+DxOFvXJivXR6VYiYUhpUHCAR08wA');				on_paid_only = false;				on_paid_only_without_trial = false;				if(extensionConfig.paid_only) {					for (website of extensionConfig.paid_only) {						if(tab_url.includes(website)) {							on_paid_only = true;						}					}				}				if(extensionConfig.paid_only_without_trial) {					for (website of extensionConfig.paid_only_without_trial) {						if(tab_url.includes(website)) {							on_paid_only_without_trial = true;						}					}				}				if(on_paid_only_without_trial && !storageCache.api_token) {					chrome.runtime.sendMessage({cmd: "popup_error", result: {"status": 2, "msg": "onlyPaidWorksHere"}});					return;				}				if(on_paid_only && !storageCache.api_token) {					chrome.identity.getAuthToken({						'interactive': true					}, function(token) {						if(token == undefined) {							//console.log(chrome.runtime.lastError.message);							chrome.runtime.sendMessage({cmd: "popup_error", result: {"status": 2, "msg": "needAuth"}});							return;						}					   var CWS_LICENSE_API_URL = 'https://www.googleapis.com/chromewebstore/v1.1/userlicenses/';					    try {						var req = new XMtpRequest();						} catch(err) {							chrome.runtime.sendMessage({cmd: "popup_error", result: {"status": 2, "msg": "trialEnded"}});							return;						}						req.open('GET', CWS_LICENSE_API_URL + chrome.runtime.id);						req.setRequestHeader('Authorization', 'Bearer ' + token);						req.onreadystatechange = function() {						  if (req.readyState == 4) {							var license = JSON.parse(req.responseText);							if(license.accessLevel == "FREE_TRIAL") {								if((license.createdTime > 1521015562514) && (Date.now() - license.createdTime)/(1000*60*60*24) > 14) {									chrome.runtime.sendMessage({cmd: "popup_error", result: {"status": 2, "msg": "trialEnded"}});									return;								}							}							//if(license.accessLevel == "FULL") {								info["chrome_token"] = token;								g_recognizer_client.start(info, storageCache.record_length);							//}						  }						}						req.send();					});				} else {					g_recognizer_client.start(info, storageCache.record_length);				}			});            break;

function post_request(audio_buffer) {	var server_url = "https://api.audd.io/";	//var browser_version = navigator.userAgent;	var post_data = new FormData();	if(_info.api_token) {		post_data.append('api_token', _info.api_token);		// post_data.append('tab_url', "api:client");	}		for (var key in _info) {		post_data.append(key, _info[key]);	}	var manifest = chrome.runtime.getManifest();	var app_id = chrome.runtime.id;	console.log(app_id);	post_data.append('file', audio_buffer);	//post_data.append('browser_version', browser_version);	//post_data.append('market', chrome.i18n.getMessage("countryCode"));	post_data.append('version', manifest.version);	post_data.append("app_id", app_id);	post_data.append('return', 'lyrics');		$.ajax({		type: 'POST',		url: server_url,		data: post_data,		timeout : 15000,		dataType: 'json',		processData: false,		contentType: false,		success: function(data) {			console.log(data);			chrome.runtime.sendMessage({cmd: "success_post", result: data, info: _info});		},		error: function(error, textStatus) {			console.log(error);			var msg = "HTTP Error (Code = " + textStatus + ")";			if (textStatus == 'timeout') {				msg = "Network Timeout";			}			chrome.runtime.sendMessage({cmd: "popup_error_relay", result: {"status": 2, "text": msg}});		}	});}