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fix: server island hydration #12444

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Nov 20, 2024
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5 changes: 5 additions & 0 deletions .changeset/olive-garlics-marry.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'astro': patch
---

Fixes an issue where a server island hydration script might fail case the island ID misses from the DOM.
5 changes: 3 additions & 2 deletions packages/astro/src/runtime/server/render/server-islands.ts
Original file line number Diff line number Diff line change
Expand Up @@ -81,8 +81,8 @@ let response = await fetch('${serverIslandUrl}', {
method: 'POST',
body: JSON.stringify(data),
});
if(response.status === 200 && response.headers.get('content-type') === 'text/html') {
if (script) {
if(response.status === 200 && response.headers.get('content-type') === 'text/html') {
let html = await response.text();
// Swap!
Expand All @@ -97,6 +97,7 @@ if(response.status === 200 && response.headers.get('content-type') === 'text/htm
script.before(frag);
}
script.remove();
}
</script>`);
},
};
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