从前端命中时，Firebase 模拟器云函数会抛出 cors 错误
Firebase emulator cloud function throws cors error when hit from frontend
我有这个功能，在生产中完美运行但是当 运行 在本地我得到 cors 错误
export const listUsers = functions.https.onRequest(async (req, res) => {
res.set("Access-Control-Allow-Origin", "*")
const data = await getSomeUsers(10)
res.json(data)
})
模拟器启动正常：
cors 问题：
检查这个：
Chrome does not support localhost for CORS requests (a bug opened in
2010, marked WontFix in 2014).
To get around this you can use a domain like lvh.me (which points at
127.0.0.1 just like localhost) or start chrome with the --disable-web-security flag (assuming you're just testing).
我有这个功能，在生产中完美运行但是当 运行 在本地我得到 cors 错误
export const listUsers = functions.https.onRequest(async (req, res) => {
res.set("Access-Control-Allow-Origin", "*")
const data = await getSomeUsers(10)
res.json(data)
})
模拟器启动正常：
cors 问题：
检查这个：
Chrome does not support localhost for CORS requests (a bug opened in 2010, marked WontFix in 2014).
To get around this you can use a domain like lvh.me (which points at 127.0.0.1 just like localhost) or start chrome with the --disable-web-security flag (assuming you're just testing).