javascript - 带有axios请求的firebase云功能CORS错误

Question

我有一个通用的云功能:

const functions = require('firebase-functions');
const cors = require('cors')({ origin: true });

exports.helloWorld = functions.https.onRequest((request, response) => {
    cors(request, response, () => {
        res.status(200).send("Hello from Firebase!");
    });
});

我正在使用 axios 从客户端调用它:

  axios
    .get(
      "https://us-central1-dev-imcla.cloudfunctions.net/helloWorld",
    )
    .then((res) => {
      console.log(res);
    })
    .catch(er=>{
      console.log(er);
    })

我有两个问题:

我收到 CORS 错误。

Access to XMLHttpRequest at 'https://myurl/helloWorld' from origin 'http://localhost:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. xhr.js?b50d:178 GET https://us-central1-dev-imcla.cloudfunctions.net/helloWorld net::ERR_FAILED

如果我从浏览器打开 cors 插件，或者如果我从 postman 那里调用函数，我会收到此错误:

Error: Forbidden Your client does not have permission to get URL /helloWorld from this server.

Error: Request failed with status code 403 at createError (createError.js?2d83:16) at settle (settle.js?467f:17) at XMLHttpRequest.handleLoad (xhr.js?b50d:61)

问题是我既是经过身份验证的用户，又在云代码中有 cors 包。

Answer 1

可能与 CORS 无关。检查 firebase 函数日志以查看代码中是否有任何错误。
https://stackoverflow.com/a/51103084/5781575