node.js+express 跨域问题加了请求头无效解决Access to XMLHttpRequest at 'xxxx'from'xxx'origin 'xxx' has been blocke

先吧如下代码复制下来web /* 解决跨域问题 ` app.all(" * ", function(req, res, next) { res.header(“Access-Control-Allow-Origin”, " * "); res.header(“Access-Control-Allow-Headers”, “Content-Type,Content-Length, Authoriza

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