response.headers.add('Access-Control-Allow-Origin', '*') # 允许所有域名访问,可自定义 return response 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 2.3. 使用装饰器处理跨域请求 自定义装饰器: from flask import Flask, jsonify app = Flask(__name__) def allow_cors(func): def wrapper(*args, ...
res.headers['Access-Control-Allow-Origin']="*"# 设置允许跨域 res.headers['Access-Control-Allow-Methods']='PUT,GET,POST,DELETE'returnresif__name__=='__main__':app.run(debug=True) 此时,设置好了这两个headers的参数,如下: 代码语言:javascript 复制 res.headers['Access-Control-Allow-Origin']=...
Fn+F12或者F12,选择Network再查看Headers 查阅了大量blog后解决了vue前端跨域问题,status code变成了200ok,但是response仍然没有数据,才发现后端也要解决跨域问题(我麻了呀) Vue前端解决跨域问题 附上代码: .env.development文件 VUE_APP_BASE_API = '/dev-api' vue.config.js文件,修改devServer: devServer: { ...
前端访问Flask的接口,浏览器报错:has been blocked by CORS policy: No 'Access-Control-Allow-Origin' heade 需要将Flask的api接口允许跨域访问,返回的response中,设置headers['Access-Control_Allow_Origin']="*" 样例如下: response = make_response(jsonify(data)) response.headers['Access-Control-Allow-Origin...
res.headers['Access-Control-Allow-Origin']="*"#设置允许跨域 res.headers['Access-Control-Allow-Methods']='PUT,GET,POST,DELETE' returnres if__name__=='__main__': app.run(debug=True) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
web page tries to make an HTTP request to a different domain, the browser will first send a preflight request (HTTP OPTIONS method) to check if the server allows the request. The server can respond with the Access-Control-Allow-Origin header to indicate if the request is allowed or denied...
['CORS_HEADERS'] = 'Content-Type' cors = CORS(app, resources={r"/foo": {"origins": "http://localhost:port"}}) @app.route('/foo', methods=['POST']) @cross_origin(origin='localhost',headers=['Content- Type','Authorization']) def foo(): return request.json['inputVar'] if __...
Flask 跨域设置 返回码大于400是报错The 'Access-Control-Allow-Origin' header contains multiple values...
has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. 二、原因分析 起初以为是程序代码问题,排查了半天,结果方向错了。后来才定位到,原来是因为部署到生产环境上时,依然使用的是...
Access-Control-Allow-Origin:* Cache-Control:max-age=600 Content-Encoding:gzip Content-Type:text/html;charset=utf-8 Date:Wed,15Feb201707:50:41GMT Expires:Wed,15Feb201708:00:41GMT Last-Modified:Wed,15Feb201707:46:56GMT Server:GitHub.com ...