diff --git a/pywb/apps/frontendapp.py b/pywb/apps/frontendapp.py
index 81857470..61784f47 100644
--- a/pywb/apps/frontendapp.py
+++ b/pywb/apps/frontendapp.py
@@ -133,7 +133,7 @@ class FrontEndApp(object):
             self.url_map.add(Rule('/', endpoint=self.serve_home))
 
         if self.client_side_replay:
-            self.url_map.add(Rule('/static/sw.js', endpoint=self.serve_wabac_service_worker))
+            self.url_map.add(Rule('/{0}/sw.js'.format(self.static_prefix), endpoint=self.serve_wabac_service_worker))
 
         self._init_coll_routes(coll_prefix)
 
diff --git a/pywb/static/loadWabac.js b/pywb/static/loadWabac.js
index df724d25..400f6f0f 100644
--- a/pywb/static/loadWabac.js
+++ b/pywb/static/loadWabac.js
@@ -1,9 +1,10 @@
 class WabacReplay
 {
-  constructor(prefix, url, ts) {
+  constructor(prefix, url, ts, staticPrefix) {
     this.prefix = prefix;
     this.url = url;
     this.ts = ts;
+    this.staticPrefix = staticPrefix;
     this.collName = new URL(prefix, "http://dummy").pathname.split('/')[1];
     this.adblockUrl = undefined;
 
@@ -14,7 +15,7 @@ class WabacReplay
     const scope = "/";
 
     await navigator.serviceWorker.register(
-      "/static/sw.js?" + new URLSearchParams(this.queryParams).toString(),
+      `${this.staticPrefix}/sw.js?` + new URLSearchParams(this.queryParams).toString(),
       { scope },
     );
 
diff --git a/pywb/templates/frame_insert.html b/pywb/templates/frame_insert.html
index 8403395c..bdb0b2ee 100644
--- a/pywb/templates/frame_insert.html
+++ b/pywb/templates/frame_insert.html
@@ -16,7 +16,7 @@ html, body
 {% if client_side_replay %}
 <script src='{{ static_prefix }}/loadWabac.js'></script>
 <script>
-  new WabacReplay("{{ wb_prefix }}", "{{ url }}", "{{ timestamp }}").init();
+  new WabacReplay("{{ wb_prefix }}", "{{ url }}", "{{ timestamp }}", "{{ static_prefix }}").init();
 </script>
 {% else %}
 <script src='{{ static_prefix }}/wb_frame.js'> </script>