[fix] fix PR 2656

SCRIPT_NAME remove trailing slash to avoid infinite redirect

searx/webapp.py

@@ -1133,11 +1133,14 @@ class ReverseProxyPathFix:
 
             base_url = urlparse(settings['server']['base_url'])
             self.script_name = base_url.path
+            if self.script_name.endswith('/'):
+                # remove trailing slash to avoid infinite redirect on the index
+                # see https://github.com/searx/searx/issues/2729
+                self.script_name = self.script_name[:-1]
             self.scheme = base_url.scheme
             self.server = base_url.netloc
 
     def __call__(self, environ, start_response):
-
         script_name = self.script_name or environ.get('HTTP_X_SCRIPT_NAME', '')
         if script_name:
             environ['SCRIPT_NAME'] = script_name