From 1c89afc7add6fd335a4e818c575967fa574b6ff3 Mon Sep 17 00:00:00 2001
From: Hariom Balhara <hariombalhara@gmail.com>
Date: Sat, 4 Jun 2022 18:47:02 +0530
Subject: [PATCH] Fix preview not working (#2962)

---
 packages/embeds/vite.config.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/packages/embeds/vite.config.js b/packages/embeds/vite.config.js
index 17bef332d0..2830d4d334 100644
--- a/packages/embeds/vite.config.js
+++ b/packages/embeds/vite.config.js
@@ -3,6 +3,21 @@ process.env.EMBED_PUBLIC_VERCEL_URL = process.env.VERCEL_URL;
 process.env.EMBED_PUBLIC_WEBAPP_URL = process.env.NEXT_PUBLIC_WEBAPP_URL;
 process.env.EMBED_PUBLIC_EMBED_LIB_URL = process.env.NEXT_PUBLIC_EMBED_LIB_URL;
 
+// Problem: typeof process.env.EMBED_PUBLIC_EMBED_LIB_URL is "undefined"(truthy) if process.env.NEXT_PUBLIC_EMBED_LIB_URL is undefined(falsy)
+// This is probably because environment variables are always string, so this weird automatic conversion to string happens
+// HACKY Solution
+if (process.env.EMBED_PUBLIC_EMBED_LIB_URL === "undefined") {
+  delete process.env.EMBED_PUBLIC_EMBED_LIB_URL;
+}
+
+if (process.env.EMBED_PUBLIC_WEBAPP_URL === "undefined") {
+  delete process.env.EMBED_PUBLIC_WEBAPP_URL;
+}
+
+if (process.env.EMBED_PUBLIC_VERCEL_URL === "undefined") {
+  delete process.env.EMBED_PUBLIC_VERCEL_URL;
+}
+
 const viteBaseConfig = {
   envPrefix: "EMBED_PUBLIC_",
 };