Overview
This article focuses on the solution of how to upload monitoring data to the server when the page instance is closed with the business scenario of “front-end monitoring and reporting data” .
Among them, four schemes are involved, namely:
- Synchronous XMLHttpRequest
- img.src
- navigator.sendBeacon
- fetch keepalive
Synchronous XMLHttpRequest
const data = JSON . stringify ({ time : performance. now () }); var xhr = new XMLHttpRequest (); // 第三个参数false，表示当前请求是同步xhr. open ( 'post' , 'http://api.wangxiaokai.vip/test'
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The post 4 solutions for front-end uploading monitoring data when the page is closed first appeared on Lenix Blog .
This article is reprinted from https://blog.p2hp.com/archives/9421
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