当我在 Safari 中运行我的页面时, JSON 文件已成功载入, 但在 Chrome 中运行时失败 。 在 Chrome 的错误控制台中, 它显示错误 :
XMLHttpRequest cannot load file:///C:/Users/290851/Desktop/json-eg/test.json. Origin null is not allowed by Access-Control-Allow-Origin.
我还测试了JSON的档案,而且文件是有效的。谁能告诉我为什么发生这种情况,有什么解决办法?
您是否听说过 < a href=>" "http://en.wikipedia.org/wiki/Same_ground_policy" rel=" nofollow noreferrer" >Cross Docause Access ?
您将无法在其它域名中调用该服务( 您的 Jason 文件 ) 。 Chrome 向您警告脚本和服务位于不同的域( 不同的网站) 。 这是现代浏览器的安全功能, 防止了这些网络通话 。
如果你同时有剧本和 Jason 文件 和 Jason 文件 在同一文件夹中, 我猜它应该是世界性的。 试一试看看 。
你需要使用代理或JSONP 来解决这个问题。
"https://stackoverflow.com/search?q=cross%20domain%20javascript"。>以前也问过许多类似的问题 。
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