Markdown format empty table validation failure

[qsx9527]

|  |  |
| --- | --- |
|  |  |

1

| 1 |  |
| --- | --- |
|  |  |

The above example raises the following error：

error: Uncaught (in promise) RangeError: Invalid content for node tableHeader: <>

he following example is normal.

| 1 |  |
| --- | --- |
|  |  |

1

@yangfuhai

[qsx9527]

当编辑器里的内容为

| 序号 | 其他其他 |
| ---- | -------- |
| 1    |          |
| 2    |          |
| 3    |          |
| 4    |          |

的时候，api方法 getMarkdown()会报错，提示此处c为null

[qsx9527]

这种方式就可以☺

setContent(content: string) {
// this.focus().clear().insert(content);
this.focus().clear().innerEditor.commands.setContent(content);
return this;
}