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Failed to load http://wantTOgo.com/get_sts_token/:
No 'Access-Control-Allow-Origin' header is present on the requested resource.
Origin 'http://fromHere.com' is therefore not allowed access.
package main
import (
"./myKey"
"fmt"
"os"
"github.com/aliyun/aliyun-sts-go-sdk/sts"
"github.com/labstack/echo"
"github.com/labstack/echo/middleware"
"net/http"
)
func handleError(err error) {
fmt.Println(err)
os.Exit(-1)
}
const (
accessKeyID = myKey.AccessKeyID
accessKeySecret = myKey.AccessKeySecret
roleArn = myKey.RoleArn
sessionName = myKey.SessionName
)
type ExceptionResp struct {
Status string
Message string
}
func main() {
e := echo.New()
e.Use(middleware.CORSWithConfig(middleware.CORSConfig{
// AllowOrigins: []string{"https://labstack.com", "https://labstack.net"},
AllowOrigins: []string{"*"},
// AllowHeaders: []string{echo.HeaderOrigin, echo.HeaderContentType, echo.HeaderAccept},
AllowHeaders: []string{"*"},
}))
e.GET("/aliSTS/:uid", func(c echo.Context) error {
uid := c.Param("uid")
fmt.Println("LOG ", uid)
stsClient := sts.NewClient(accessKeyID, accessKeySecret, roleArn, sessionName)
resp, err := stsClient.AssumeRole(3600)
if err != nil {
handleError(err)
r := &ExceptionResp{
Status: "-1",
Message: "what?",
}
return c.JSON(http.StatusOK, r)
}
r := resp.Credentials
return c.JSON(http.StatusOK, r)
})
e.Logger.Fatal(e.Start(":1324"))
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
</body>
</html>
<script>
const ourSTSurl = 'http://blackhole.com:1324/aliSTS/33333'
const xhr = new XMLHttpRequest()
const verb = 'GET'
xhr.open(verb,ourSTSurl)
xhr.setRequestHeader('Access-Control-Allow-Origin', '*');
xhr.send()
console.log(xhr)
</script>
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