Allow disabling proxy of /template path via env (#3773)

Author: christian-byrne

.env_example

@@ -18,3 +18,10 @@ TEST_COMFYUI_DIR=/home/ComfyUI
 
 # Whether to enable minification of the frontend code.
 ENABLE_MINIFY=true
+
+# Whether to disable proxying the `/templates` route. If true, allows you to 
+# serve templates from the ComfyUI_frontend/public/templates folder (for 
+# locally testing changes to templates). When false or nonexistent, the 
+# templates are served via the normal method from the server's python site 
+# packages.
+DISABLE_TEMPLATES_PROXY=false

vite.config.mts

@@ -18,6 +18,7 @@ const IS_DEV = process.env.NODE_ENV === 'development'
 const SHOULD_MINIFY = process.env.ENABLE_MINIFY === 'true'
 // vite dev server will listen on all addresses, including LAN and public addresses
 const VITE_REMOTE_DEV = process.env.VITE_REMOTE_DEV === 'true'
+const DISABLE_TEMPLATES_PROXY = process.env.DISABLE_TEMPLATES_PROXY === 'true'
 
 const DEV_SERVER_COMFYUI_URL =
   process.env.DEV_SERVER_COMFYUI_URL || 'http://127.0.0.1:8188'
@@ -52,9 +53,13 @@ export default defineConfig({
         target: DEV_SERVER_COMFYUI_URL
       },
 
-      '/templates': {
-        target: DEV_SERVER_COMFYUI_URL
-      },
+      ...(!DISABLE_TEMPLATES_PROXY
+        ? {
+            '/templates': {
+              target: DEV_SERVER_COMFYUI_URL
+            }
+          }
+        : {}),
 
       '/testsubrouteindex': {
         target: 'http://localhost:5173',