Juraste opened a new issue, #18028:
URL: https://github.com/apache/echarts/issues/18028
### Version
5.4.0
### Link to Minimal Reproduction
_No response_
### Steps to Reproduce
1. 创建两个echarts instance，并且都基于svg渲染
2. 将两个instance利用connect形成group
3. 在其中一个instance中添加导出图片的toolbox 或是使用myChart.getConnectedDataURL({ type:
'svg'});
4. 报错Cannot set properties of undefined (setting 'innerHTML')，对应源码
zr_1.painter.getSvgRoot().innerHTML = content_1;
### Current Behavior
设为同一个group的两个echartsInstance（使用svg渲染），在利用getConnectedDataURL({type:'svg'})时导出失败，提示报错
Cannot set properties of undefined (setting 'innerHTML')
### Expected Behavior
导出一个合并两个svg的静态svg资源
### Environment
```markdown
- OS:Windows11
- Browser:Chrome 107.0.5304.107
- Framework:[email protected]
```
### Any additional comments?
_No response_
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