Add CORS middleware

server.py

@@ -9,12 +9,20 @@ from fastapi.responses import JSONResponse
 from pathlib import Path
 from bs4 import BeautifulSoup
 from rich.logging import RichHandler
+from fastapi.middleware.cors import CORSMiddleware
 
 
 logging.basicConfig(level=logging.INFO, format="%(message)s", datefmt="[%X]", handlers=[RichHandler(markup=True)])
 app = fastapi.FastAPI(
     root_path=os.environ.get("PREVIEW_ROOT_PATH", ""),
 )
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["GET", "OPTIONS"],
+    allow_headers=["*", "Authorization"],
+)
 
 MISSING_TOKEN = JSONResponse(
     {"errcode": "M_MISSING_TOKEN", "error": "Missing access token"},