web-view在在ios访问空白，canvas drawImage 如何获取图片的宽高？+微信小程序开发。加了#wechat_redirect没用





onLoad: function (options) {
this.setData({
fid: options.fid,
mid: options.mid,
reportname: options.reportname,
url: app.globalData.ip + '/xcx/xcxreport?reportid=' + options.fid + '&mid=' + options.mid + '&openid=' + app.globalData.openid + '&reportname=' + options.reportname +"#wechat_redirect"
})
},