如果出现错误，我对获取API有一些疑问 [英] I have some doubts regarding the fetch api in case of errors

问题描述

我一直在尝试获取API，但尚不清楚何时将其拒绝.例如，当我尝试以下代码:fetch("https://stackoverflow.com/")时，它会被拒绝，而如果我插入一个完全随机的文本，例如"aoishoaisoab"，则会被拒绝.即使该URL不存在也可以解决.我已经读到它只有在出现网络错误时才会被拒绝.那怎么会被拒绝呢?

I have been experimenting with the fetch api, and it's still not clear when it is rejected. For example when I try the following: fetch("https://stackoverflow.com/") it is rejected whereas if i insert a completely random text like "aoishoaisoab" it is resolved eventhough such URL doesnt exists. I have read that it is only rejected if there is a network error. Then how come it is rejected?

推荐答案

请确保您没有从浏览器发出此请求，您将得到一个

Be sure that you are not making this request from your browser, you will get a CORS error since the fetched page is not hosted on the same domain as the JS Code.

出于测试目的，您可以使用

For testing purposes you can use a CORS plugin that allows requests like that.

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