Ajax.html:35 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org

AJAX的容易错误的地方

Ajax.html:35 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
Ajax @ Ajax.html:35
(anonymous) @ Ajax.html:58

在chrome控制台是这样的

Ajax.html:35 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org

这个错误是来自xhr.open(“get”,url,true)；是来自这句代码第三个参数是异步或者同步的如果你来自参数不小心传递成了字符串就这样了

xhr.open("get",url,"true");就会是这个结果不信你们去试试

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