Access to XMLHttpRequest at 'file:///C:/Users/A000685/Desktop/0608/cd_catalog.xml' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, isolated-app, chrome-extension, chrome-untrusted, https, edge. cd_catalog.xml:1 Failed to load resource: net::ERR_FAILED
时间: 2024-04-07 11:28:43 浏览: 189
这个错误是由于浏览器的安全限制导致的。浏览器默认不允许从本地文件系统中加载跨域资源,这是出于安全考虑的。
解决方法有两种:
1. 使用一个Web服务器来托管你的XML文件,并通过HTTP协议来访问它。在这种情况下,你需要将XMLHttpRequest的URL改为http://localhost:port/your_file.xml的形式,其中port是你所使用的Web服务器的端口号,your_file.xml是你要访问的XML文件的路径。
2. 将浏览器的安全设置修改为允许从本地文件系统中加载跨域资源。这种方法不建议在生产环境中使用,因为它会降低浏览器的安全性。要使用这种方法,请按照以下步骤操作:
- 在Chrome浏览器中,打开一个新的标签页,并输入chrome://flags/#allow-insecure-localhost。
- 启用“Allow invalid certificates for resources loaded from localhost.”选项。
- 重启浏览器。
然后,你就可以使用file://协议来访问本地文件系统中的XML文件了。但是,这种方法只适用于Chrome浏览器,其他浏览器可能需要不同的设置。
相关问题
Access to XMLHttpRequest at 'file:///E:/projects/ThreejsSpace/fbxTest/Angry.fbx'
Access to XMLHttpRequest at 'file:///E:/projects/ThreejsSpace/fbxTest/Angry.fbx is a security feature implemented in web browsers to prevent cross-origin requests. It means that you are trying to make an XMLHttpRequest to a local file on your computer, which is not allowed due to security restrictions.
To access the file 'Angry.fbx' using XMLHttpRequest, you need to host it on a web server and access it through a valid URL. This can be done by setting up a local web server or uploading the file to a remote server.
Access to XMLHttpRequest at 'file:///D:/vue/vue-first/data.json' from origin 'null' has been blocked by CORS policy
回答: 这个错误是由于浏览器的CORS策略引起的。CORS是一种安全机制,用于限制跨域请求。当浏览器发现请求的源与目标不在同一个域时,会发送一个预检请求,检查目标服务器是否允许跨域请求。如果目标服务器没有正确配置CORS头部,浏览器就会拒绝该请求,从而导致这个错误。\[1\]\[2\]
对于你提到的具体错误,'file:///D:/vue/vue-first/data.json'是一个本地文件路径,而'null'是请求的源。由于这是一个本地文件请求,而不是通过HTTP协议请求,所以CORS策略不适用于这种情况。因此,你可以通过将数据文件放在与你的应用程序相同的域中,或者使用服务器来提供数据,以避免这个错误。
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