2016-05-03

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隐写术总结

聚沙

webpack –config -p

压缩？

Chrome devTools size or content

“Size” is the number of bytes on the wire, and “content” is the actual size of the resource. A number of things can make them different, including:

  • Being served from cache (small or 0 “size”)
  • Response headers, including cookies (larger “size” than “content”)
  • Redirects or authentication requests
  • gzip compression (smaller “size” than “content”, usually)

相关：http://stackoverflow.com/questions/8072921/chrome-dev-tools-size-vs-content

IE8 postMessage

虽然 postMessage 是 HTML5 的特性，但 IE8 和 Firefox3 就实现了这个 API，当然，跟后来的标准并不一致。

这其实也不能怪 IE8。

It’s in the HTML 5 spec. It’s implemented in Internet Explorer 8 and Firefox 3, but the implementation in IE8 deviates from the spec.

In your iframe page, you have a code similar to this:

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parent.postMessage({success: 'ok', name: "mirreal"}, "*");

so in order to get it to work on IE 8/9, you need to convert it to the following:

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parent.postMessage(JSON.stringify({success: 'ok', name: "mirreal"}), "*");

Note: The postMessage method is supported in Internet Explorer from version 8, Firefox from version 3 and Opera from version 9.5.

Note: The postMessage method is synchronous in Internet Explorer and asynchronous in other browsers.

window.postMessage is syncronouse in IE 8

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var syncronouse = true;
window.onmessage = function () {
  console.log(syncronouse);// true
};
window.postMessage('test', '*');
syncronouse = false;

http://stevesouders.com/misc/test-postmessage.php

http://www.violato.net/blog/javascript/141-workaround-for-postmessage-json-issue-on-ie-89

http://help.dottoro.com/ljgheukc.php

IE10 【续】

无法获取未定义或 null 引用的属性

setTImeout

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(function(f) {
   window.setTimeout = f(window.setTimeout);
   window.setInterval = f(window.setInterval);
})(function(f) {
  return function(c, t) {
    var a = [].slice.call(arguments, 2);
    return f(function() {
      c.apply(this, a)
    }, t);
  }
});

https://developer.mozilla.org/zh-CN/docs/Web/API/Window/setTimeout

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