在 Chrome 打包应用程序中通过 XHR 加载本地内容-前端问题

Loading local content through XHR in a Chrome packaged app(在 Chrome 打包应用程序中通过 XHR 加载本地内容)

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问题描述

我正在尝试加载使用 Backbone 构建的 Web 应用程序，它会提取本地存储的 JSON 和 HTML 模板文件.我想知道 Chrome 打包应用是否可以通过使用某种get"/ajax 请求来加载这些文件?

I'm trying to load in a web app that I've built using Backbone and it pulls in JSON and HTML template files that are stored locally. I was wondering with Chrome packaged apps whether it's possible to load these files by using some sort of 'get'/ajax request?

目前我正在接受这个......

Currently I'm getting this...

OPTIONS chrome-extension://fibpcbellfjkmapljkjdlpgencmekhco/templates/templates.html Cannot make any requests from null. jquery.min.js:2
XMLHttpRequest cannot load chrome-extension://fibpcbellfjkmapljkjdlpgencmekhco/templates/templates.html. Cannot make any requests from null.

我找不到任何有关如何执行此操作的真实信息，因此非常感谢您的帮助！

I can't find any real information on how to do this so any help would be great thanks!

推荐答案

是的，这完全有可能，而且很简单.这是一个工作示例.尝试从这个开始，确认它有效，然后添加回您自己的代码.如果您遇到障碍并想出一个比 XHR 是否适用于打包应用程序更具体的问题，您可能想问一个新问题.

Yes, it's totally possible, and it's easy. Here's a working sample. Try starting with this, confirm that it works, and then add back in your own code. If you hit a roadblock and come up with a more specific question than whether XHRs work in packaged apps, you might want to ask a new question.

manifest.json:

{
  "name": "SO 15977151 for EggCup",
  "description": "Demonstrates local XHR",
  "manifest_version" : 2,
  "version" : "0.1",
  "app" : {
    "background" : {
      "scripts" : ["background.js"]
    }
  },
  "permissions" : []
}

background.js:

chrome.app.runtime.onLaunched.addListener(function() {
  chrome.app.window.create("window.html",
    { bounds: { width: 600, height: 400 }});
});

window.html:

<html>
<body>
  <div>The content is "<span id="content"/>"</div>
  <script src="main.js"></script>
</body>
</html>

main.js:

function requestListener() {
  document.querySelector("#content").innerHTML = this.responseText;
};

onload = function() {
  var request = new XMLHttpRequest();
  request.onload = requestListener;
  request.open("GET", "content.txt", true);
  request.send();
};

内容.txt:

Hello, world!

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