无法通过Chrome扩展程序连接到本地主机 [英] Can't connect to localhost from Chrome extension

问题描述

我正在研究跟踪时间的Chrome扩展程序，并将Google App Engine用于后端。

测试时，我试图连接本地版本扩展到本地版本的App Engine应用程序。当我尝试发送POST请求时，出现：

XMLHttpRequest无法加载 HTTP：//本地主机：8080 /报告。 Origin chrome-extension：// mbndmimplohfkkcincjodnfpaapbbmei不被Access-Control-Allow-Origin允许。

但是，当我更改URL时以便它发布到appspot.com网址。

什么是Access-Control-Allow-Origin，为什么它阻止我从本地主机获取结果？

解决方案

我相信这是因为您无法调用未包含在清单的权限部分中的服务器。 manifest.json的权限部分应该如下所示：

 permissions：[
http：/ /myapp.appspot.com/*，
http：// localhost / *
] 
  

请注意，我没有测试过这个，但这听起来就像是您的问题来自哪里。

I am working on a Chrome extension that tracks time, and uses Google App Engine for the backend.

For testing, I'm trying to connect a local version of the extension to a local version of the App Engine app. When I try to send a POST request, I'm getting:

XMLHttpRequest cannot load http://localhost:8080/report. Origin chrome-extension://mbndmimplohfkkcincjodnfpaapbbmei is not allowed by Access-Control-Allow-Origin.

But it works when I change the URL so that it posts to the appspot.com URL.

What is the Access-Control-Allow-Origin, and why is it stopping me from getting results from localhost?

解决方案

I believe this is because you cannot make calls to a server that is not included in the permissions section of your manifest. The permissions section of manifest.json should look something like this:

"permissions": [
    "http://myapp.appspot.com/*",
    "http://localhost/*"
]

Note, I haven't tested this, but it sounds like that is where your problem is coming from.

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