The downloading image has no edge in showcase.

[ufresh2013]

What platform were you using when you found the bug?

• React Flow / Svelte Flow version: ^12.5.5
• Browser and version: Chrome 135.0.7049.42
• OS and version: mac

Live code example

https://reactflow.nodejs.cn/examples/misc/download-image

Describe the Bug

The exported flow image has no edge.

Steps to reproduce the bug or issue

When I Open the code in Stackblitz:
https://reactflow.nodejs.cn/examples/misc/download-image

And click the download image button

The image go wrong. It has no edge.

Expected behavior

Exported image show all thing well.

Screenshots or Videos

No response

Additional context

No response

[ufresh2013]

It's ok for me to set edge's style

edges.push({
    id: `e${source}-${target}`,
    source,
    target,
    label,
    style: {
      stroke: '#b1b1b7',
    },
    labelStyle: {
      fill: '#b1b1b7',
    },
    labelBgStyle: {
      fill: '#fff',
    },
})

[usmanabdurrehman]

Made fix under #762

[moklick]

We added a message to our docs. Hopefully this issue gets resolved: bubkoo/html-to-image#516

[printerscanner]

This is also an issue in Svelte: #964