代理

🌐 Proxy

TIP

更新: 我们推出了新的代理助手，以便更轻松地使用代理功能。更多详情请查看代理助手文档。

import { Hono } from 'hono'

const app = new Hono()

app.get('/posts/:filename{.+.png$}', (c) => {
  const referer = c.req.header('Referer')
  if (referer && !/^https:\/\/example.com/.test(referer)) {
    return c.text('Forbidden', 403)
  }
  return fetch(c.req.url)
})

app.get('*', (c) => {
  return fetch(c.req.url)
})

export default app

TIP

如果你在类似的代码中看到 Can't modify immutable headers. 错误，你需要克隆响应对象。

app.get('/', async (_c) => {
  const response = await fetch('https://example.com')
  // clone the response to return a response with modifiable headers
  const newResponse = new Response(response.body, response)
  return newResponse
})

fetch 返回的 Response 的头部是不可变的。因此，如果你修改它，会发生错误。

🌐 The headers of Response returned by fetch are immutable. So, an error will occur if you modify it.

代理 ​

代理