在Express JS中允许多个CORS域 [英] Allow multiple CORS domain in express js

问题描述

如何以简化的方式允许多个域用于CORS。

How do I allow multiple domains for CORS in express in a simplified way.

我有

 cors: {
        origin: "www.one.com";
    }

    app.all('*', function(req, res, next) {
            res.header("Access-Control-Allow-Origin", cors.origin);
            res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
            next();
        });

此功能仅在来源

但是如果我想将来源作为一个域数组，并且我想允许CORS用于原始数组中的所有域，我都会有这样的内容-

But if I want to have origin as an array of domains and I want to allow CORS for all the domains in the origin array, I would have something like this -

cors: {
            origin: ["www.one.com","www.two.com","www.three.com"];
        }

但是接下来的问题是，下面的代码不起作用-

But then the problem is this below code would not work -

app.all('*', function(req, res, next) {
                res.header("Access-Control-Allow-Origin", cors.origin);
                res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
                next();
            });

我如何获取 res.header 通过 cors.origin 吗？

推荐答案

cors模块： https://www.npmjs.org/package/cors
它为您完成了此类工作-检查 配置CORS w /动态起源-部分

I would recommend the cors-module: https://www.npmjs.org/package/cors It does this kind of stuff for you - check the "Configuring CORS w/ Dynamic Origin"-Section

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