fix(link): do not reload when Link is in svg (#41320)Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
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## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see `contributing.md`
I believe this fixes `<Link>`s that appear inside an `<svg>`. For
example:
```typescript
<svg width={200} height={200}>
<Link href="/about">
<a>
<text x={0} y={20}>About</text>
</a>
</Link>
</svg>
```
There's a comment in `next/link` (["anchors inside an svg have a
lowercase
nodeName"](https://github.com/vercel/next.js/blob/bef709bc74760aadedfeb2fd4a4434e213cb024f/packages/next/client/link.tsx#L163))
that implies `Link`s are supposed to work inside an `svg`, but at the
moment, I'm finding that clicking the link causes a full page reload.
This seems to be because Next.js considers the link to be a 'modified'
event (as per `isModifiedEvent`). In the case where the event's
`currentTarget` is an `SVGAElement` (rather than a `HTMLAnchorElement`),
the `event.currentTarget.target` is actually an
[`SVGAnimatedString`](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedString).
This looks a bit like `{"animVal": "", "baseVal": ""}`, so the `(target
&& target !== '_self')` check is truthy.
Using
[`getAttribute`](https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute)
instead seems to consistently give a string value in either (SVG or
HTML) case.
I've attempted to add a test, but I haven't worked out how to run it
yet...
---------
Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
next.js
73065beb - fix(link): do not reload when Link is in svg (#41320)Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
