问题发生在在 Geetest.java 里面，
当我是用 https 请求时，会出现 Exception: Already Connected 异常，原因在于 171 行代码 sslReadConnection.getHeaderFields() 实际上已经打开了连接，所以后续在 181 行 sslReadConnection.setDoInput(true); 调整连接的属性时会报错。

可以参考StackOverflow

即原来的代码：

                HttpsURLConnection sslReadConnection = (HttpsURLConnection) url.openConnection();
                mSSLReadConnection = sslReadConnection;

                cookieManager = new CookieManager();

                Map> headerFields = sslReadConnection.getHeaderFields();
                if (headerFields.get("Set-Cookie") != null) {
                    List cookiesHeader = headerFields.get("Set-Cookie");
                    if(cookiesHeader != null) {
                        for (String cookie : cookiesHeader) {
                            cookieManager.getCookieStore().add(null, HttpCookie.parse(cookie).get(0));
                        }
                    }
                }

                sslReadConnection.setDoInput(true);
                sslReadConnection.setDoOutput(false);
                sslReadConnection.setRequestMethod("GET");

                sslReadConnection.setConnectTimeout(mTimeout/2);

                sslReadConnection.setReadTimeout(mTimeout/2);

                sslReadConnection.connect();

应该改成：

                HttpsURLConnection sslReadConnection = (HttpsURLConnection) url.openConnection();
                mSSLReadConnection = sslReadConnection;
                cookieManager = new CookieManager();
                sslReadConnection.setDoInput(true);
                sslReadConnection.setDoOutput(false);
                sslReadConnection.setRequestMethod("GET");

                sslReadConnection.setConnectTimeout(mTimeout/2);

                sslReadConnection.setReadTimeout(mTimeout/2);

                sslReadConnection.connect();

                Map> headerFields = sslReadConnection.getHeaderFields();
                if (headerFields.get("Set-Cookie") != null) {
                    List cookiesHeader = headerFields.get("Set-Cookie");
                    if(cookiesHeader != null) {
                        for (String cookie : cookiesHeader) {
                            cookieManager.getCookieStore().add(null, HttpCookie.parse(cookie).get(0));
                        }
                    }
                }

在加载验证码需要的图片时，chromium给出的log信息是：
I/chromium: [INFO:CONSOLE(0)] "Image from origin 'XXXX' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://115.28.113.153' is therefore not allowed access.", source: http://115.28.113.153/static/appweb/app-index.html?XXXX

请问这种问题该如何解决呢？

文档里面没有说明需要哪些权限，最少能运行的权限是？

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />