diff --git a/assets/scripts/graph.js b/assets/scripts/graph.js
index 4012056..2884eb0 100644
--- a/assets/scripts/graph.js
+++ b/assets/scripts/graph.js
@@ -309,6 +309,10 @@ function createLink(s, t) {
             adj_List.push(Array(maxId).fill(10000));
         }
 
+        for (let i = 0; i < adj_List.length; i++) {
+            adj_List[i][i] = 0;
+        }
+
         adj_List[sId - 1][tId - 1] = distance;
         adj_List[tId - 1][sId - 1] = distance;
 
diff --git a/pages/app.html b/pages/app.html
index 9e0faf2..a706868 100644
--- a/pages/app.html
+++ b/pages/app.html
@@ -71,7 +71,7 @@
     };
 
     // Backend URL
-    const backendURL = 'https://daddjbackend.stu.nighthawkcodingsociety.com/api/dijkstra/';
+    const backendURL = 'http://localhost:8084/api/dijkstra/';
 
     // Creating a new XMLHttpRequest object
     const xhr = new XMLHttpRequest();
diff --git a/pages/signin.html b/pages/signin.html
index b79b983..8207faf 100644
--- a/pages/signin.html
+++ b/pages/signin.html
@@ -124,6 +124,7 @@ <h2>Sign In</h2>
                     if (response.ok) {
                         console.log('Successful fetch');
                         return;
+                        window.location.href = "https://csa-tri-1.github.io/DADDiJkstra-frontend/pages/app";
                     }
                     // Success!!!
                     // Redirect to Database location
@@ -146,15 +147,24 @@ <h2>Sign In</h2>
             // Fetch the API
             fetch(read_url, options)
                 .then(response => {
-                    if (response.ok) {
+                    if (response.status === 200) {
                         console.log(response);
-                        alert("Signed In!")
+                        alert("Signed In!");
                         return;
+                        window.location.href = "https://csa-tri-1.github.io/DADDiJkstra-frontend/pages/app";
                     }
                     if (response.status !== 200) {
                         const errorMsg = 'Database response error: ' + response.status;
                         console.log(errorMsg);
+                        alert("Bad password/username input");
+                        return;
+                        window.location.href = "https://csa-tri-1.github.io/DADDiJkstra-frontend/pages/app";
+                    }
+                    if (response.status === 401) {
+                        alert("Bad password/username input");
+                        console.log(errorMsg);
                         return;
+                        window.location.href = "https://csa-tri-1.github.io/DADDiJkstra-frontend/pages/app";
                     }
                     // response.json().then(data => {
                     // // const jwtToken = data.jwt;
@@ -165,7 +175,6 @@ <h2>Sign In</h2>
                     // alert("Signed In!")
                     // return;
                     // });
-                    window.location.href = "https://csa-tri-1.github.io/DADDiJkstra-frontend/pages/app";
                 })
                 };
     </script>