sentry-async.js

(function(win, doc, version, onError, onUnhandledRejection, sentry) {
  var SENTRY_SDK = win.SENTRY_SDK;

  var queue = function(exception) {
    queue.data.push(exception);
  };
  queue.data = [];

  win[sentry] = function() {
    var SDK = win.Sentry;
    var args = [].slice.call(arguments);
    var method = args.shift();

    if (method) {
      if (SDK) {
        SDK[method].apply(SDK, args);
      } else {
        queue.data.push({ m: method, a: args });
      }
    }
  };

  var oldOnError = win[onError];

  win[onError] = function(message, source, lineno, colno, exception) {
    queue({ e: [].slice.call(arguments) });

    if (oldOnError) {
      oldOnError.apply(win, arguments);
    }
  };

  var oldOnUnhandledRejection = win[onUnhandledRejection];
  
  win[onUnhandledRejection] = function(exception) {
    queue({ p: exception.reason });

    if (oldOnUnhandledRejection) {
      oldOnUnhandledRejection.apply(win, arguments);
    }
  };

  var currentScriptTag = doc.getElementsByTagName("script")[0];
  var newScriptTag = doc.createElement("script");
  
  newScriptTag.src =
    "https://browser.sentry-cdn.com/" + version + "/bundle.min.js";
  newScriptTag.crossorigin = "anonymous";

  newScriptTag.addEventListener("load", function() {
    try {
      win[onError] = oldOnError;
      win[onUnhandledRejection] = oldOnUnhandledRejection;

      var data = queue.data;
      var SDK = win.Sentry;
      
      SDK.init(SENTRY_SDK);

      var tracekitErrorHandler = win[onError];

      if (data.length) {
        for (var i = 0; i < data.length; i++) {
          if (data[i].e) {
            tracekitErrorHandler.apply(SDK.TraceKit, data[i].e);
          } else if (data[i].p) {
            SDK.captureException(data[i].p);
          } else if (data[i].m) {
            SDK[data[i].m].apply(SDK, data[i].a);
          }
        }

        data.length = 0;
      }
    } catch (o_O) {
      console.error(o_O);
    }
  });

  currentScriptTag.parentNode.insertBefore(newScriptTag, currentScriptTag);
})(window, document, "4.3.0", "onerror", "onunhandledrejection", "sentry");

sentry-async.min.js

!function(n,e,t,a,r,o){var c=n.SENTRY_SDK,i=function(n){i.data.push(n)};i.data=[],n[o]=function(){var e=n.Sentry,t=[].slice.call(arguments),a=t.shift();a&&(e?e[a].apply(e,t):i.data.push({m:a,a:t}))};var p=n[a];n[a]=function(e,t,a,r,o){i({e:[].slice.call(arguments)}),p&&p.apply(n,arguments)};var s=n[r];n[r]=function(e){i({p:e.reason}),s&&s.apply(n,arguments)};var l=e.getElementsByTagName("script")[0],d=e.createElement("script");d.src="https://browser.sentry-cdn.com/"+t+"/bundle.min.js",d.crossorigin="anonymous",d.addEventListener("load",function(){try{n[a]=p,n[r]=s;var e=i.data,t=n.Sentry;t.init(c);var o=n[a];if(e.length){for(var l=0;l<e.length;l++)e[l].e?o.apply(t.TraceKit,e[l].e):e[l].p?t.captureException(e[l].p):e[l].m&&t[e[l].m].apply(t,e[l].a);e.length=0}}catch(n){console.error(n)}}),l.parentNode.insertBefore(d,l)}(window,document,"4.3.0","onerror","onunhandledrejection","sentry");