uni-app uni.canvasPutImageData一直报canvasPutImageData fail

uni-app uni.canvasPutImageData一直报canvasPutImageData fail

产品分类：uniapp/App

PC开发环境操作系统：Mac

手机系统：HarmonyOS NEXT

手机系统版本号：HarmonyOS 5.0.1

手机厂商：模拟器

手机机型：模拟器

页面类型：vue

vue版本：vue3

打包方式：云端

示例代码：

<template>
<view class="container">
<canvas
canvas-id="signatureCanvas"
class="signature-canvas" 
/>
<canvas
canvas-id="signatureCanvass"
class="signature-canvass"
/>
<button @click="getImgData" style="position: fixed;top: 80%;">获取图片数据</button>
<button @click="fu" style="position: fixed;top: 80%;right: 0%;">复现</button>
</view>
</template> 

<script>
export default {
data() {
return {
ctx: null,
isDrawing: false,
lastX: 0,
lastY: 0,
canvasWidth:0,
canvasHeight:0,
getData:null
}
},
onReady() {
// 获取canvas上下文
this.ctx = uni.createCanvasContext('signatureCanvas', this); 
this.ctx.setFillStyle('#ff0000');  
this.ctx.fillRect(0, 0, 100, 100); // 绘制一个红色矩形  
this.ctx.draw()  
this.ctxs = uni.createCanvasContext('signatureCanvass', this);  
this.ctxs.draw()  
},
methods: {
fu(){
let that=this
let data = new Uint8ClampedArray(this.getData)
console.log(data)
uni.canvasPutImageData({
canvasId: 'signatureCanvass',
x: 0,
y: 0,
width: 750,
height:500,
data: data,
success(res) {
console.log('成功',res)
},
fail(err) {
console.log('失败',err)
}
},this)
},
getImgData(){
let that=this
uni.canvasGetImageData({
canvasId: 'signatureCanvas',
x: 0,
y: 0,
width: 750,
height: 500,
success(res) {
console.log(res.width) // 100
console.log(res.height) // 100
console.log(res.data instanceof Uint8ClampedArray) // true
console.log(res.data) // 100 * 100 * 4
that.getData=res.data
}
},this)
},
}
}
</script> 

.container {
width: 750rpx;
/* height: 500rpx; */
display: flex;
flex-direction: column;
background-color: #f8f8f8;
}

.signature-canvas {
width: 750rpx;
height: 500rpx;
background-color: white;
border: 1px solid #eee;
}
.signature-canvass{
width: 750rpx;
height: 500rpx;
background-color: #000;
border: 1px solid #eee;
margin-top: 30rpx;
}

操作步骤：

按照提供代码复现

预期结果：

成功把数据渲染到canvas上

实际结果：

报错

bug描述：

首先使用uni.canvasGetImageData获取canvas图片信息，文档上写着data是Uint8ClampedArray类型的，然后在把数据传给uni.canvasPutImageData,实现数据会知道canvas上，但是一直报canvasPutImageData:fail，不知道原因是什么，昨天发过一个咨询的帖子，官方人员就要了一下demo，就消失了，现在也没回