feat: respect x-* headers for redirections (#9054)

api/extensions/ext_proxy_fix.py

@@ -0,0 +1,10 @@
+from flask import Flask
+
+from configs import dify_config
+
+
+def init_app(app: Flask):
+    if dify_config.RESPECT_XFORWARD_HEADERS_ENABLED:
+        from werkzeug.middleware.proxy_fix import ProxyFix
+
+        app.wsgi_app = ProxyFix(app.wsgi_app)