fix(preact): pre-optimize @preact/signals to prevent dev reload flakiness

matthewp · matthewp · commit ee10ee390e39 · 2026-04-01T10:12:04.000-04:00
diff --git a/.changeset/preact-optimize-signals.md b/.changeset/preact-optimize-signals.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/preact': patch
+---
+
+Pre-optimizes `@preact/signals` and `preact/hooks` in the Vite dep optimizer to prevent late discovery triggering full page reloads during dev
diff --git a/packages/integrations/preact/src/index.ts b/packages/integrations/preact/src/index.ts
@@ -126,6 +126,8 @@ function configEnvironmentPlugin(compat: boolean | undefined): Plugin {
 					'@astrojs/preact/client.js',
 					'preact',
 					'preact/jsx-runtime',
+					'preact/hooks',
+					'@astrojs/preact > @preact/signals',
 				];
 			}
 

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +'@astrojs/preact': patch
 +---
++
 +Pre-optimizes `@preact/signals` and `preact/hooks` in the Vite dep optimizer to prevent late discovery triggering full page reloads during dev
Original file line number	Diff line number	Diff line change
`@@ -126,6 +126,8 @@ function configEnvironmentPlugin(compat: boolean \| undefined): Plugin {`
`126`	`126`	`'@astrojs/preact/client.js',`
`127`	`127`	`'preact',`
`128`	`128`	`'preact/jsx-runtime',`
	`129`	`+ 'preact/hooks',`
	`130`	`+ '@astrojs/preact > @preact/signals',`
`129`	`131`	`];`
`130`	`132`	`}`
`131`	`133`