Fix relative CSS URLs with urljoin

app.py

@@ -5,6 +5,7 @@ import re
 import tempfile
 import zipfile
 import requests
+from urllib.parse import urljoin
 import gradio as gr
 import spaces
 from fontTools.ttLib import TTFont
@@ -37,8 +38,14 @@ def extract_from_page(url):
     html = r.text
     base = r.url
     css_links = re.findall(r'href=["\']([^"\']+\.css[^"\']*)["\']', html, re.I)
-    css_texts = [html] + [cr.text for link in css_links
-                          for cr in [requests.get(("https:" + link) if link.startswith("//") else (base.rstrip("/") + link if link.startswith("/") else link), headers=UA, timeout=20)] if cr.ok]
+    css_texts = [html]
+    for link in css_links:
+        try:
+            cr = requests.get(urljoin(base, link), headers=UA, timeout=20)
+            if cr.ok:
+                css_texts.append(cr.text)
+        except Exception:
+            pass
     for css in css_texts:
         found += parse_font_faces(css)
     found += [(u.split("/")[-1], u, "") for u in re.findall(r'(https?://[^"\']+?\.(?:woff2|woff|ttf|otf|eot))', html, re.I)]