最近在寫本身的博客,涉及到跨域的問題,本身搗鼓許久,終於解決了。而後總結一下,記錄一下,往後遇到相似的問題的時候也能夠獲得一些啓發。javascript
跨域,指的是瀏覽器不能執行其餘網站的腳本。它是由瀏覽器的同源策略形成的,是瀏覽器對javascript施加的安全限制。前端
所謂同源是指,域名,協議,端口都相同。瀏覽器執行javascript腳本時,會檢查這個腳本屬於哪一個頁面,若是不是同源頁面,就不會被執行。java
一、 經過jsonp跨域
二、 document.domain + iframe跨域
三、 location.hash + iframe
四、 window.name + iframe跨域
五、 postMessage跨域
六、 跨域資源共享(CORS)
七、 nginx代理跨域
八、 nodejs中間件代理跨域
九、 WebSocket協議跨域node
一、登陸服務器,進入到Nginx配置文件: cd /etc/nginx/conf.dios
二、打開要配置跨域的相應域名之下:nginx
三、將如下配置信息加進去,由於這個域名我還加上了ssh的配置,因此篇幅看着有點長:json
upstream server { server 127.0.0.1:3000; } server { listen 80; server_name server.locusy.top; rewrite ^(.*)$ https://$host$1 permanent; location / { add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization'; if ($request_method = 'OPTIONS') { add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization'; return 204; } proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forward-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_set_header X-Nginx-Proxy true; proxy_pass http://47.94.208.76:3000; proxy_redirect off; } } server { listen 443; server_name server.locusy.top; ssl on; ssl_certificate cert/1754906_server.locusy.top.pem; ssl_certificate_key cert/1754906_server.locusy.top.key; ssl_session_timeout 5m; ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4; ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_prefer_server_ciphers on; location / { add_header Access-Control-Allow-Origin *; add_header Access-Control-Allow-Credentials true; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization'; if ($request_method = 'OPTIONS') { add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization'; return 204; } proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forward-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_set_header X-Nginx-Proxy true; proxy_pass http://47.94.208.76:3000; proxy_redirect off; } }
const cors = require('koa-cors'); app.use(cors({ origin: '*', exposeHeaders: ['WWW-Authenticate', 'Server-Authorization'], maxAge: 500, credentials: true, //cookie allowMethods: ['GET', 'POST', 'DELETE', 'OPTIONS', 'PUT'], allowHeaders: ['Content-Type', 'Authorization', 'Accept'] }));
// axios.defaults.withCredentials = true