diff --git a/index.html b/index.html
index 48dc4187..496ec69f 100644
--- a/index.html
+++ b/index.html
@@ -380,22 +380,24 @@
               input.type = 'text';
               input.value = v;
               input.style.width = '100%';
-              input.onkeydown = function(e) {
-                  if (e.key === 'Enter') {
-                      const postUrl = '/kvs?mount=' + encodeURIComponent(mount);
-                      fetch(postUrl, {
-                          method: 'POST',
-                          headers: {'Content-Type': 'application/json'},
-                          body: JSON.stringify({[k]: input.value})
-                      }).then(response => {
-                          if (!response.ok) {
-                              response.text().then(body => {
-                                  alert('Status: ' + response.status + '\nBody: ' + body);
-                              });
-                          }
-                      });
-                  }
-              };
+               input.onkeydown = function(e) {
+                   if (e.key === 'Enter') {
+                       const key = encodeURIComponent(k)
+                       const mount_uri = encodeURIComponent(mount)
+                       const postUrl = `/kvs/${key}?mount=${mount}`
+                       fetch(postUrl, {
+                           method: 'POST',
+                           headers: {'Content-Type': 'application/json'},
+                           body: JSON.stringify(input.value)
+                       }).then(response => {
+                           if (!response.ok) {
+                               response.text().then(body => {
+                                   alert('Status: ' + response.status + '\nBody: ' + body);
+                               });
+                           }
+                       });
+                   }
+               };
               valueCell.appendChild(input);
               row.appendChild(keyCell);
               row.appendChild(valueCell);
@@ -595,10 +597,10 @@
         }
         });
         const branchesStr = branches.join(':');
-        fetch('/kvs?mount=' + encodeURIComponent(mount), {
+        fetch(`/kvs/branches?mount=${encodeURIComponent(mount)}`, {
         method: 'POST',
         headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({"branches": branchesStr})
+        body: JSON.stringify(branchesStr)
         }).then(response => {
         if (!response.ok) {
         response.text().then(body => {