这是我的代码:
@app.route('/hello', methods=["POST"])
def hello():
resp = make_response(render_template('hello.html'))
resp.headers['Access-Control-Allow-Origin'] = '*'
return resp
然而,当我从浏览器向我的服务器发出请求时,我会收到这个错误:
XMLHttpRequest cannot load http://localhost:5000/hello.
No 'Access-Control-Allow-Origin' header is present on the requested resource.
我也尝试过这种方法,即在请求之后设置响应头:
@app.after_request
def add_header(response):
response.headers['Access-Control-Allow-Origin'] = '*'
return response
不行。我得到了同样的错误。有没有办法只在路由函数中设置响应头呢?像这样的做法会更理想:
@app.route('/hello', methods=["POST"])
def hello(response): # is this a thing??
response.headers['Access-Control-Allow-Origin'] = '*'
return response
但我找不到任何方法来做到这一点。请帮忙。
编辑
如果我使用POST请求来curl URL,像这样:
curl -iX POST http://localhost:5000/hello
我收到了这个回复:
HTTP/1.0 500 INTERNAL SERVER ERROR
Content-Type: text/html
Content-Length: 291
Server: Werkzeug/0.9.6 Python/2.7.6
Date: Tue, 16 Sep 2014 03:58:42 GMT
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>500 Internal Server Error</title>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.</p>
有任何想法吗?