IE中的jQuery AJAX请求失败

const express = require('express');
const app = express();

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

app.get('/api', function(req, res, next) {
  res.json({ message: 'Hello, World!' });
});

app.listen(3000, function() {
  console.log('Server is running on port 3000');
});

$.ajax({
  url: "http://example.com/api",
  dataType: "jsonp",
  data: { param1: "value1", param2: "value2" },
  success: function(data) {
    console.log(data);
  }
});

const proxy = require('http-proxy-middleware');

app.use('/api', proxy({
  target: 'http://example.com',
  changeOrigin: true
}));