原产地http：// localhost不被Access-Control-Allow-Origin允许

本文介绍了原产地http：// localhost不被Access-Control-Allow-Origin允许的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我正在尝试从backbone.js取回到我的node.js服务器。但是，我在控制台中收到以下错误： 原始http：// localhost不允许Access-Control-Allow-Origin。 我添加了以下到我的node.js服务器： var allowCrossDomain = function（req，res，next）{ res.header（'Access-Control-Allow-Origin'，http：// localhost）; res.header（'Access-Control-Allow-Methods'，'GET，PUT，POST，DELETE'）; res.header（'Access-Control-Allow-Headers'，'Content-Type'）; }; app.configure（function（）{ app.use（allowCrossDomain）; }）; 但它仍然返回相同的错误。但是，即使这样工作，它似乎不是理想的解决方案，因为我希望来自各地的用户能够发送请求。解决方案如果您希望每个人都能访问Node应用程序，请尝试使用 res。 $ b 这将允许请求任何来源。 CORS启用网站有许多有关不同的Access-Control-Allow标头以及如何使用它们的信息。 我正在使用Chrome，请查看此关于localhost和Access-Control-Allow-Origin的bug。此处还有另一个 StackOverflow问题详细描述了该问题。 / p> I'm trying to do a fetch from backbone.js to my node.js server. However, I get the following error in the console:Origin http://localhost is not allowed by Access-Control-Allow-Origin.I added the following to my node.js server:var allowCrossDomain = function(req, res, next) { res.header('Access-Control-Allow-Origin', "http://localhost"); res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE'); res.header('Access-Control-Allow-Headers', 'Content-Type');};app.configure(function() { app.use(allowCrossDomain);});But it's still returning the same error. However, even if this did work, it doesn't seem like the ideal solution, as I would like users from all over to be able to send requests. 解决方案 If you want everyone to be able to access the Node app, then try using res.header('Access-Control-Allow-Origin', "*")That will allow requests from any origin. The CORS enable site has a lot of information on the different Access-Control-Allow headers and how to use them.I you are using Chrome, please look at this bug bug regarding localhost and Access-Control-Allow-Origin. There is another StackOverflow question here that details the issue. 这篇关于原产地http：// localhost不被Access-Control-Allow-Origin允许的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！