Cordova-拒绝从设备连接到api(内容安全策略) [英] Cordova - Refused to connect to api from device (Content Security Policy)
问题描述
我正在使用Visual Studio的Apache Cordova工具.
I am working with Visual Studio's Tools for Apache Cordova.
当我使用Ripple构建应用程序时,一切都很好.但是当我将其构建到我的android设备上时,该应用程序拒绝连接到我的外部API.
When I build the app with Ripple, all is well. But when I build it to my android device, the app refuses to connect to my external API.
这是JavaScript控制台日志中的错误:
This is the error in the JavaScript Console log:
拒绝连接到" http://XXX.herokuapp.com/api/posts/0/5 ",因为它违反了以下内容安全策略指令:"default-src'self'数据:gap: https://ssl.gstatic.com 'unsafe-eval'".
Refused to connect to 'http://XXX.herokuapp.com/api/posts/0/5' because it violates the following Content Security Policy directive: "default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'".
请注意,未明确设置"connect-src",因此"default-src"为 用作后备.
Note that 'connect-src' was not explicitly set, so 'default-src' is used as a fallback.
并且:
错误:无法在"XMLHttpRequest"上执行打开":拒绝 连接到"http://XXX. herokuapp. com/api/posts/0/5'
Error: Failed to execute 'open' on 'XMLHttpRequest': Refused to connect to 'http:// XXX. herokuapp. com/api/posts/0/5'
我的API使用Node.js构建并表达.我的server.js中有Access-Control-Allow-Headers,但在我的设备上仍然无法使用.
My API is built with Node.js and express. There is Access-Control-Allow-Headers in my server.js, but it still doesn't work on my device.
Server.js:
//'use strict';
var express = require('express'); // call express
var app = express(); // define our app using express
var bodyParser = require('body-parser');
var methodOverride = require('method-override');
var router = express.Router();
var fs = require('fs');
var path = require('path');
app.use(bodyParser.json()); // parse application/json
app.use(bodyParser.json({ type: 'application/vnd.api+json' })); // parse application/vnd.api+json as json
app.use(bodyParser.urlencoded({ extended: true })); // parse application/x-www-form-urlencoded
app.use(methodOverride('X-HTTP-Method-Override')); // override with the X-HTTP-Method-Override header in the request. simulate DELETE/PUT
app.use(express.static(__dirname + '/www'));
// middleware to use for all requests
app.use(function (req, res, next) {
console.log('in middleware');
res.setHeader('Access-Control-Allow-Origin', '*');//allowing ripple's localhost get access to node's localhost(5432).
console.log(req.header);
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
res.setHeader('Access-Control-Allow-Headers',"X-Requested-With,Content-Type");
//res.setHeader('Access-Control-Allow-Credentials', true);
// Pass to next layer of middleware
next();
});
require('./app/routes')(app); // pass our application into our routes -- must
app.use('/api', router);//put this line beofre passing app to routes.js for it to take effect.
var port = process.env.PORT || 8080;
app.listen(port, function() {
console.log("Listening on " + port);
});
exports = module.exports = app; // expose app
我也曾尝试将meta标签添加到index.html文件中,但没有成功.
I have also tried adding a meta tag to my index.html file, but with no success.
<meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' http://localhost:8080 http://XXX.herokuapp.com">
任何想法可能是什么问题?
Any ideas what might be the problem?
推荐答案
来自错误消息.您正在JS中调用Ajax请求.但是您仅在script-src
之后添加了http://XXX.herokuapp.com
,这仅允许加载脚本内容.为了允许Ajax请求,需要在connect-src
之后添加http://XXX.herokuapp.com
,如下所示:
From the Error Message. You are calling Ajax Request in your JS. But you only added http://XXX.herokuapp.com
after script-src
, which only allows loading the script content. To allow the Ajax request, http://XXX.herokuapp.com
needs to be added after connect-src
like this:
<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; connect-src 'self' http://XXX.herokuapp.com; style-src 'self' 'unsafe-inline'; media-src *">
或者,您可以在default-src
之后添加URL,它设置允许所有内容(加载脚本/CSS内容,Ajax请求等)的默认策略.因此meta标签应该是这样的:
Alternatively, you can add the URL after default-src
, which sets a default policy for allowing everything(loading script/CSS contents,Ajax Request and so on). So the meta Tag should be like this:
<meta http-equiv="Content-Security-Policy" content="default-src 'self' http://XXX.herokuapp.com data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *">
有关内容安全策略的详细信息,您可以参考内容安全策略参考.
For detailed information about Content Security Policy you can refer to Content Security Policy Reference.
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