return false from form submit handlers

app/templates/downloadPassword.js

@@ -52,6 +52,7 @@ module.exports = function(state, emit) {
       state.fileInfo.password = password;
       emit('getMetadata');
     }
+    return false;
   }
 
   return div;

app/templates/uploadPasswordSet.js

@@ -63,6 +63,7 @@ module.exports = function(state, emit) {
       document.getElementById('copy-btn').disabled = false;
       emit('password', { password, file });
     }
+    return false;
   }
 
   function toggleResetInput(event) {

app/templates/uploadPasswordUnset.js

@@ -63,6 +63,7 @@ module.exports = function(state, emit) {
       document.getElementById('copy-btn').disabled = false;
       emit('password', { password, file });
     }
+    return false;
   }
 
   return div;