現在の環境でstructured cloneで渡せるもの渡せないものを調べる

supports.js

(function (global) {
  var supports = Object.create(null);
  (function __BlobUrls() {
    // URLにベンダプレフィクスが付いているのはwebkitだけ!!
    var URL = global.URL || global.webkitURL;
    supports.BlobUrls = URL !== undefined && URL.createObjectURL;
  })();
  (function __MessageChannel() {
    supports.MessageChannel = !!global['MessageChannel'];
  })();
  supports.StructuredClone = Object.create(null);
  (function (URL,callback) {
    function check() {
      if (Object.keys(supports.StructuredClone).length === types.length) {
        Object.freeze(supports.StructuredClone);
        callback(supports.StructuredClone);
      }
    }
    var types = 'Date RegExp Error ArrayBuffer Blob'.split(' ');
    var skipTypes = [];
    var objects = Object.create(null);
    if (global['Blob']) {
      try {
        objects['Blob'] = (new Blob([''], {type: 'application/javascript'}))
      } catch (e) {
        skipTypes.push('Blob');
      }
    }
    if (supports.MessageChannel) {
      (function () {
        var channel = new MessageChannel;
        channel.port1.onmessage = function(e){
          var type = e.data.type;
          supports.StructuredClone[type] = e.data.object instanceof global[type];
          check();
        };
        types.forEach(function(type){
          if (skipTypes.indexOf(type) !== -1) {
            supports.StructuredClone[type] = false;
            return;
          }
          try {
            channel.port2.postMessage({object: objects[type] || (new (global[type])()), type:type});
          } catch (e) {
            supports.StructuredClone[type] = false;
            check();
          }
        });
      })();
      return;
    }
    if (supports.BlobUrls) {
      var script = '(' + (function (self) {
        self.onmessage = function(e) {
          var type = e.data.type;
          self.postMessage({
            result:e.data.object instanceof self[ type],
            type:type
          });
        };
      }).toString() + ')(self);';
      var blob = new Blob([script],{type:'application/javascript'});
      var worker = new Worker(URL.createObjectURL(blob));
      worker.onmessage = function(e) {
        supports.StructuredClone[e.data.type] = e.data.result;
        check();
      };
      types.forEach(function(type){
        try {
          worker.postMessage({object: objects[type] || (new (global[type])()), type:type});
        } catch (e) {
          supports.StructuredClone[type] = false;
          check();
        }
      });
      return;
    }
  })((global.URL || global.webkitURL),function(StructuredClone){
    console.log(JSON.stringify(StructuredClone));
  });
})(this);