开放数据域 绘制图片 刷新画布后[wxgl]invalid drawimage

获取图片部分

function preloadAvatar() {   console.log('preload avatar...');   //如果超过1.5秒没有加载成功，使用默认头像   setTimeout(() => {     if (loadAvatarFail) {       console.log("头像加载失败");       // createScene();     }     }, 1500);   let preloaded = 0;   let count = 0;   for (var i in friendData) {     count++;     let img = wx.createImage();     //处理没有头像的情况     if (friendData[i]['avatar'] == "") {         friendData[i]['avatar'] = assets.avatar;         preloaded++;     }else {         img.src = friendData[i]['avatar'];         friendData[i]['avatar'] = img;     }     img.onload = ()=> {       preloaded++;       if (preloaded == count) {         loadAvatarFail = false;         console.log("头像加载完毕");       }     }   } }

使用图片部分

context = sharedCanvas.getContext("2d");     context.globalCompositeOperation = "source-over"; context.drawImage(assets.panel,(stageWidth - assets.panel.width) / 2,(stageHeight - assets.panel.height) / 2)   context.drawImage(assets.content,(stageWidth - assets.content.width) / 2,((stageHeight - assets.content.height) / 2 ) - 20)

模拟器的是可以跑 并且没有报错，但是真机显示第二真后 就没有图片了

[wxgl]invalid drawimage