update rss_proxy.py

* testing fixes description

proxy/rss_proxy.py

@@ -51,6 +51,7 @@ def init_proxy(app):
         raw_query = request.query_string.decode()
         if raw_query.startswith("url="):
             url = urllib.parse.unquote(raw_query[4:])
+            url = html.unescape(url)
         else:
             return "Missing URL", 400
 
@@ -110,7 +111,6 @@ def init_proxy(app):
 
             final_items = cached_items + new_items
             response_xml = f"""{_head_html}{"".join(final_items)}</channel></rss>"""
-            response_xml = response_xml.replace("&amp;", "&")
 
             return Response(response_xml, content_type="application/xml; charset=utf-8")