...式解決。不知你是否注意到,在設(shè)置響應(yīng)頭 Access-Control-Allow-Origin 域的值時(shí),只允許設(shè)置一個(gè)域名,這意味著不能同時(shí)設(shè)置多個(gè)域名來(lái)共享資源。而在 Yii2 中直接使用Origin => [http://www.site1.com, http://www.site2.com]的形式卻可以設(shè)...
...oll-Request-Method: POST 接著服務(wù)器會(huì)做出響應(yīng): Access-Control-Allow-Origin: * Access-Control-Allow-Methods: POST, GET, OPTIONS Access-Control-Allow-Headers: X-Requested-With, Content-Type, Accept Acces...
...去。 if ($request_method = OPTIONS) { add_header Access-Control-Allow-Origin *; add_header Access-Control-Allow-Methods GET, POST, PUT, PATCH, DELETE, OPTIONS; add_header Access-Control-A...
... 后端代碼 app.use((req, res, next) => { res.header(Access-Control-Allow-Origin, *); next(); }); 解決一般的跨域,就這樣寫(xiě)就夠了 默認(rèn)情況下,跨源請(qǐng)求不提供憑據(jù)(cookie、HTTP認(rèn)證及客戶端SSL證明等),通過(guò)將withCredentials屬性設(shè)置為true,可...
...rlencoded,滿足簡(jiǎn)單請(qǐng)求的條件;響應(yīng)頭部返回Access-Control-Allow-Origin: http://127.0.0.1:3000;瀏覽器發(fā)現(xiàn)這次跨域請(qǐng)求是簡(jiǎn)單請(qǐng)求,就自動(dòng)在頭信息之中,添加一個(gè)Origin字段;Origin字段用來(lái)說(shuō)明請(qǐng)求來(lái)自哪個(gè)源(協(xié)議+域名+端口號(hào))。服...
...成響應(yīng)就達(dá)到目的的話,僅需配置響應(yīng)頭部的Access-Control-Allow-Origin即可。 如果我們?cè)趆ttp://localhost:3000 域名下想要訪問(wèn) http://127.0.0.1:3001 域名??梢宰鋈缦屡渲茫?app.use(async (ctx, next) => { ctx.set(Access-Control-Allow-Origin, http://...
當(dāng)出現(xiàn)403跨域錯(cuò)誤的時(shí)候 No Access-Control-Allow-Origin header is present on the requested resource,需要給Nginx服務(wù)器配置響應(yīng)的header參數(shù): 一、 解決方案 只需要在Nginx的配置文件中配置以下參數(shù): location / { add_header Access-Control-Allow-O.....
...覽器沒(méi)有發(fā)現(xiàn)Resonse Headers響應(yīng)頭信息沒(méi)有包含Access-Control-Allow-Origin就會(huì)拋出錯(cuò)誤,但這種錯(cuò)誤無(wú)法通過(guò)status code來(lái)識(shí)別,因?yàn)榉祷氐臓顟B(tài)碼可能是200. 如果你使用的域名是origin允許的,Response Headers里會(huì)多出幾個(gè)基本頭信息字段: ...
...to preflight request doesnt pass access control check: No Access-Control-Allow-Origin header is present on the requested resource. Origin null is therefore not allowed access. 報(bào)這個(gè)錯(cuò)就說(shuō)明我們跨域了,不在允許的訪問(wèn)...
...to preflight request doesnt pass access control check: No Access-Control-Allow-Origin header is present on the requested resource. Origin null is therefore not allowed access. 報(bào)這個(gè)錯(cuò)就說(shuō)明我們跨域了,不在允許的訪問(wèn)...
...應(yīng)。瀏覽器發(fā)現(xiàn),這個(gè)回應(yīng)的頭信息沒(méi)有包含Access-Control-Allow-Origin字段(詳見(jiàn)下文),就知道出錯(cuò)了,從而拋出一個(gè)錯(cuò)誤,被XMLHttpRequest的onerror回調(diào)函數(shù)捕獲。注意,這種錯(cuò)誤無(wú)法通過(guò)狀態(tài)碼識(shí)別,因?yàn)镠TTP回應(yīng)的狀態(tài)碼有可能...
... app.all(*, function (req, res, next) { res.header(Access-Control-Allow-Origin, http://h5.xesv5.com:8081) res.header(Access-Control-Allow-Credentials, true) res.header(Access-Control-Al...
...,zh-TW;q=0.4,fr;q=0.2 HTTP/1.1 200 OK X-Powered-By: Express Access-Control-Allow-Origin: * Access-Control-Allow-Methods: GET,POST,PUT,DELETE Content-Type: text/html; charset=utf-8 Content-Length: 2...
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