提交页面出现提示：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/.提交页面出现提示：Synchronous XMLHttpRequest on the m
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提交页面出现提示：Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effe
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