ionic报各种诡异错误的解决办法

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1.img标签上添加onerror事件时,报错:

---

Refused to execute inline event handler because it violates the following Content Security Policy directive: “default-src ‘self’ data: gap: https://ssl.gstatic.com ‘unsafe-eval’”. Note that ‘script-src’ was not explicitly set, so ‘default-src’ is used as a fallback.
“, source: file:///android_asset/www/index.html (41)

解决办法:
将index.html顶端的

<meta http-equiv="Content-Security-Policy" content="script-src * 'unsafe-eval'; connect-src * 'unsafe-eval'; object-src 'self'; style-src * 'unsafe-inline'; img-src *">

注释掉

2.开启应用的时候报错Application error : the connection to the server was unsuccessful

这个错误一般出现在启动页面加载数据时间过长
所以首先你需要在config.xml修改加载超时时长:

<!--默认值为10000 单位毫秒--><preference name="LoadUrlTimeoutValue" value="50000"></preference>

然后尽量减少引用网络js,能下载为本地的都下载下来放到项目里
不能下载的放到使用页面加载:

//以加载百度地图js为例//声明方法loadjs = function (src, func) {    //判断这个js文件存在直接执行回调    var scripts = document.getElementsByTagName('script');    for (i in scripts)      if (scripts[i].src == src)        return func();    if (typeof func != 'function') {      console.log('param 2 is not a function!!');      return false;    }    var script = document.createElement('script');    script.type = 'text/javascript';    script.src = src;    var head = document.getElementsByTagName('head').item(0);    head.appendChild(script);    script.onload = function () {      func();    }  }//调用loadjs('http://api.map.baidu.com/getscript?v=2.0&ak=t8zuH8VGAlkVHtn28RY4ens1tszPhFEv&services=&t=20160804144823', function () {       //这里写加载完成后执行的代码        }      });

最后把首页要从后台拉取数据的代码都写到deviceready事件中.代码如下:

//这个事件触发时机为应用与手机连接初始化完成后document.addEventListener("deviceready", function () {      //执行的代码    }, false);

后续陆续添加