From 4bd84b326889f71c2ebaacfc7f0f1b3a19017a4c Mon Sep 17 00:00:00 2001
From: Sam Greening <2552620+SG60@users.noreply.github.com>
Date: Sat, 20 Aug 2022 17:58:13 +0100
Subject: [PATCH] [FIX] Use the 'browser' platform setting for esbuild for
 Vercel Edge Functions (#6109)

* Use browser platform setting for esbuild

This should use the same esbuild settings as the Cloudflare adapter, as Vercel Edge Functions are based on Cloudflare Workers.

* changeset
---
 .changeset/wet-crews-smoke.md    | 5 +++++
 packages/adapter-vercel/index.js | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/wet-crews-smoke.md

diff --git a/.changeset/wet-crews-smoke.md b/.changeset/wet-crews-smoke.md
new file mode 100644
index 000000000000..b6d9f4417cf8
--- /dev/null
+++ b/.changeset/wet-crews-smoke.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-vercel': patch
+---
+
+Use `platform: 'browser'` for esbuild in Vercel Edge Functions.
diff --git a/packages/adapter-vercel/index.js b/packages/adapter-vercel/index.js
index fc55c079f45d..532d3534e20a 100644
--- a/packages/adapter-vercel/index.js
+++ b/packages/adapter-vercel/index.js
@@ -186,7 +186,7 @@ export default function ({ external = [], edge, split } = {}) {
 					outfile: `${dirs.functions}/${name}.func/index.js`,
 					target: 'es2020', // TODO verify what the edge runtime supports
 					bundle: true,
-					platform: 'node',
+					platform: 'browser',
 					format: 'esm',
 					external,
 					sourcemap: 'linked'