fix: run in development should use built-in fetch

Author: louis-jan

src-tauri/tauri.conf.json

@@ -6,7 +6,7 @@
   "build": {
     "frontendDist": "../web-app/dist",
     "devUrl": "http://localhost:1420",
-    "beforeDevCommand": "cross-env IS_TAURI=true yarn dev:web",
+    "beforeDevCommand": "cross-env IS_TAURI=true IS_DEV=true yarn dev:web",
     "beforeBuildCommand": "cross-env IS_TAURI=true yarn build:web"
   },
   "app": {

web-app/src/lib/completion.ts

@@ -174,7 +174,7 @@ export const sendCompletion = async (
     // TODO: Retrieve from extension settings
     baseURL: provider.base_url,
     // Use Tauri's fetch to avoid CORS issues only for openai-compatible provider
-    fetch: getServiceHub().providers().fetch(),
+    fetch: IS_DEV ? fetch : getServiceHub().providers().fetch(),
     // OpenRouter identification headers for Jan
     // ref: https://openrouter.ai/docs/api-reference/overview#headers
     ...(provider.provider === 'openrouter' && {

web-app/src/types/global.d.ts

@@ -22,6 +22,7 @@ declare global {
   declare const MODEL_CATALOG_URL: string
   declare const AUTO_UPDATER_DISABLED: boolean
   declare const GA_MEASUREMENT_ID: string
+  declare const IS_DEV: boolean
   interface Window {
     core: AppCore | undefined
     gtag?: (...args: unknown[]) => void

web-app/vite.config.ts

@@ -40,6 +40,7 @@ export default defineConfig(({ mode }) => {
     },
     define: {
       IS_TAURI: JSON.stringify(process.env.IS_TAURI),
+      IS_DEV: JSON.stringify(process.env.IS_DEV),
       IS_WEB_APP: JSON.stringify(false),
       IS_MACOS: JSON.stringify(
         process.env.TAURI_ENV_PLATFORM?.includes('darwin') ?? false