diff --git a/views/plot.html b/views/plot.html
index 7e96108..f0b12da 100644
--- a/views/plot.html
+++ b/views/plot.html
@@ -83,7 +83,8 @@
  <script src="https://cdn.plot.ly/plotly-1.5.0.min.js"></script>
  <script language="javascript" type="text/javascript">
 
- var wsUri = window.location.toString().replace('http','ws') + "ws";
+ var url = window.location.toString().replace('http','ws');
+ var wsUri = url.substring(0, url.lastIndexOf("/")) + "/ws";
  console.log(wsUri)
 
  </script>
diff --git a/views/redeem.html b/views/redeem.html
index e218070..b7b0c11 100644
--- a/views/redeem.html
+++ b/views/redeem.html
@@ -83,7 +83,8 @@
  <script src="https://cdn.plot.ly/plotly-1.5.0.min.js"></script>
  <script language="javascript" type="text/javascript">
 
- var wsUri = window.location.toString().replace('http','ws') + "ws";
+ var url = window.location.toString().replace('http','ws');
+ var wsUri = url.substring(0, url.lastIndexOf("/")) + "/ws";
  console.log(wsUri)
 
  </script>