使用addNodes 方法添加节点，会生成一个空节点

[gamerssong]

使用addNodes 方法添加节点，然后在自定义节点里面使用useNode 方法，读取到node 为undefined，这是什么原因呢？
这个问题我排查了两天，发现有可能是执行弹窗等操作之后就会触发这个问题，求解答

[bcakmakoglu]

I can't speak Chinese and the translations I get barely make any sense to me.

• Please provide a translation in English for your question
• Please provide proper context / code etc. regarding your question (I assume you asked sth about why useNode returns undefined, which I cannot answer properly without knowing what your code looks like)

[bcakmakoglu]

Are you calling useNode outside of a <VueFlow> context?
If your Dialog is not inside of the tree of <VueFlow> then useNode will not be able to find the correct node (which should log a warning for it)

[gamerssong]

I use 'useVueFlow' and 'id' in the custom node to ensure that the data of the same process is used. When I don't add the pop-up window, the 'useNode' node data is normal. However, after using the pop-up window, it seems that an empty node will be generated.

[bcakmakoglu]

If you rely on useVueFlow with an id then just use data from node props instead, idk why you even need useNode here at all 🤔

[gamerssong]

It is possible that this issue is related to the newly added interface with an iframe. If you remove the code of the iframe, the problem will no longer occur.

[gamerssong]

Using this is merely to confirm the cause of the error; it has no other purposes.