diff --git a/swagger_ui/core.py b/swagger_ui/core.py
index 8279371..d2fa13a 100644
--- a/swagger_ui/core.py
+++ b/swagger_ui/core.py
@@ -58,7 +58,7 @@ def __init__(self,
         self.parameters = copy.deepcopy(_DefaultSwaggerUIBundleParameters)
         if parameters:
             self.parameters.update(parameters)
-        self.parameters["url"] = "\"{}\"".format(self.swagger_json_uri_absolute)
+        self.set_swagger_url()
 
         # oauth2_config
         self.oauth2_config = oauth2_config
@@ -79,8 +79,10 @@ def static_dir(self):
 
     @property
     def doc_html(self):
+        prefix_split = self.url_prefix.split("/")
+        static_location = prefix_split.pop()
         return self.env.get_template('doc.html').render(
-            url_prefix=self.url_prefix,
+            url_prefix=static_location,
             title=self.title,
             config_url=self.swagger_json_uri_absolute,
             parameters=self.parameters,
@@ -162,3 +164,9 @@ def match(name):
             if handler:
                 return handler
         return None
+
+    def set_swagger_url(self):
+        """Set relative swagger url."""
+        split_path = self.swagger_json_uri_absolute.split("/")
+        swagger_url_relative = "/".join(split_path[-2:])
+        self.parameters["url"] = f'"{swagger_url_relative}"'