为什么 Chrome 在验证之前调用自动完成的 url? [英] Why is Chrome calling the autocompleted url before validation?

问题描述

我在我的网站上使用 API 向用户发送电子邮件，在测试我的通话时，我注意到我收到了两次电子邮件.

I'm using an API on my website to send emails to the users and while testing my call I noticed I was receiving the email twice.

所以 url 看起来像 "localhost/api/sendEmail" 并且，至少在 Chrome 上，当我在 localhost 上并开始输入 "/ap"url 自动完成.

So the url looks like "localhost/api/sendEmail" and, at least on Chrome, when I'm on localhost and I start typing "/ap" the url is automatically completed.

我可以在 Fiddler 上看到 Chrome(我认为是他)实际上在我按下 Enter 之前调用了它，因此邮件被发送，当我按下 Enter 时，它当然会再次发送.

And I can see on Fiddler that Chrome (well I think that's him) is actually calling it before I press Enter so the mail is sent, and when I press Enter it is of course sent a second time.

这不是问题，因为它不会被最终用户直接调用，但我只是想知道第一次调用的目的是什么?Chrome 是否会预先调用页面以加快加载速度?它会在不同的情况下引起问题吗?可以防止 Chrome 出现这种行为吗?

This is not a problem since it won't be directly callable by the end-user, but I was just wondering what is the purpose of this first call ? Is Chrome pre-calling the page to make it faster to load ? Can it cause problems in different situations? Can one prevent Chrome from behaving like this?

再说一次，这根本不是问题，但我只是想知道.

Again, not a problem at all, but I'm just wondering.

推荐答案

这是 Google 的 prefetch 功能，假设您执行自动完成的 URL，它可以更快地加载页面.

This is Google's prefetch feature, which loads the page quicker, assuming you execute the auto-completed URL.

您可以在 Google Chrome 中禁用此选项:

You can disable this option in Google Chrome:

Settings > Advanced Settings > Privacy: (uncheck) Prefetch resources..

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