diff --git a/.gitignore b/.gitignore
index f23f47ea..6612b7cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,7 @@ web/po/vue.pot
 
 web_api/session/
 web_api/public/
-web_api/static/
+web_api/static/node_modules
 
 web/static/.webassets-cache/
 web/static/gen/
diff --git a/osmose.py b/osmose.py
index abbb5ab4..0601390e 100644
--- a/osmose.py
+++ b/osmose.py
@@ -1,6 +1,7 @@
 import os
 
 from fastapi import Depends, FastAPI, HTTPException, Request, Response, responses
+from fastapi.middleware.cors import CORSMiddleware
 
 from api import app as api
 from control import app as control
@@ -10,7 +11,21 @@
 from web_api import app as web_api
 
 app = FastAPI()
-
+assets = FastAPI()
+
+assets.add_middleware(
+    CORSMiddleware,
+    allow_origins=[
+        "https://osmose.openstreetmap.fr",
+        "http://localhost",
+        "http://localhost:8080",
+        "http://127.0.0.1",
+        "http://127.0.0.1:8080",
+    ],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
 
 @app.on_event("startup")
 async def startup():
@@ -31,6 +46,8 @@ async def startup():
     app.mount("/" + lang, web_api.app)
 
 
+app.mount('/assets', assets)
+
 @app.get("/")
 @app.get("/map")
 @app.get("/map/")
@@ -44,7 +61,7 @@ def index(request: Request, langs: LangsNegociation = Depends(langs.langs)):
     return responses.RedirectResponse(url=path)
 
 
-@app.get("/assets/sprites.css")
+@assets.get("/sprites.css")
 def sprites_css():
     file_path = "web_api/public/assets/sprites.css"
     if os.path.isfile(file_path):
@@ -53,11 +70,21 @@ def sprites_css():
         raise HTTPException(status_code=404)
 
 
-@app.get("/assets/sprite.png")
+@assets.get("/sprite.png")
 def sprite_png():
     return Response(open("web_api/public/assets/sprite.png", "rb").read())
 
 
+@assets.get("/marker-gl-sprite.json")
+def sprite_png():
+    return Response(open("web_api/public/assets/marker-gl-sprite.json", "rb").read())
+
+
+@assets.get("/marker-gl-sprite.png")
+def sprite_png():
+    return Response(open("web_api/public/assets/marker-gl-sprite.png", "rb").read())
+
+
 @app.get("/images/markers/{filename:path}.png")
 def marker(filename):
     file_path = f"web_api/static/images/markers/{filename}.png"
@@ -72,4 +99,4 @@ async def catch_all(path_name: str):
     if os.path.isfile(file_path):
         return Response(open(file_path, "rb").read())
     else:
-        raise HTTPException(status_code=404)
+        raise HTTPException(status_code=404)
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 94b99817..20f8daeb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,7 @@ matplotlib >= 1.1
 requests >= 2.0
 polib
 protobuf < 4 # 4.x binary not yet compatible with system package, deps of mapbox-vector-tile
+shapely < 2.1.0 # cascaded_union function removal, deps of mapbox-vector-tile
 mapbox-vector-tile
 pyclipper
 fastapi
diff --git a/web/static/map/layers.ts b/web/static/map/layers.ts
index 2bfbfda7..59032bf5 100644
--- a/web/static/map/layers.ts
+++ b/web/static/map/layers.ts
@@ -1,5 +1,7 @@
 import { SourceSpecification } from 'maplibre-gl'
 
+declare var API_URL: string;
+
 function tileSource(url, options?): SourceSpecification {
   return {
     type: 'raster',
@@ -98,8 +100,6 @@ export const mapOverlay = {
   heatmap: 'Osmose Issues Heatmap',
 }
 
-const API_URL = 'https://osmose.openstreetmap.fr'
-
 export const glStyle = {
   version: 8,
   sources: {
diff --git a/web/types/index.d.ts b/web/types/index.d.ts
deleted file mode 100644
index 6940f915..00000000
--- a/web/types/index.d.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-declare global {
-    var API_URL: string
-}
-
-export { }
diff --git a/web_api/static/webpack.config.js b/web_api/static/webpack.config.js
index 0e156b8b..ad0aac07 100644
--- a/web_api/static/webpack.config.js
+++ b/web_api/static/webpack.config.js
@@ -10,7 +10,7 @@ module.exports = (env, argv) => {
         },
         plugins: [
             new SpritezeroWebpackPlugin({
-                source: '../web_api/static/images/**/*.svg',
+                source: 'images/**/*.svg',
                 output: 'marker-gl-',
             })
         ],