fix: use window.location.origin for transcribe endpoint

app.py

@@ -1,12 +1,21 @@
 from fastapi import FastAPI, File, UploadFile
 from fastapi.responses import HTMLResponse, JSONResponse
 from fastapi.staticfiles import StaticFiles
+from fastapi.middleware.cors import CORSMiddleware
 import whisper
 import os
 import uuid
 from pathlib import Path
 
 app = FastAPI()
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
 app.mount("/static", StaticFiles(directory="static"), name="static")
 
 os.makedirs("/tmp/whisper", exist_ok=True)