diff --git a/index.html b/index.html
index a9abfd4..84c76e6 100644
--- a/index.html
+++ b/index.html
@@ -5363,6 +5363,19 @@
       });
     },
 
+    removeData: function (obsName, key, dbName = this.dbName) {
+      return new Promise((resolve, reject) => {
+        this.openDB(dbName).then(db => {
+          var obs = db.transaction(obsName, "readwrite").objectStore(obsName);
+          let delReq = obs.delete(key);
+          delReq.onsuccess = (evt) => resolve(`Removed Data ${key}`);
+          delReq.onerror = (evt) => reject(
+            `Remove data unsuccessful [${evt.target.error.name}] ${evt.target.error.message}`);
+          db.close();
+        }).catch(error => reject(error));
+      });
+    },
+
     readData: function (obsName, key, dbName = this.dbName) {
       return new Promise((resolve, reject) => {
         this.openDB(dbName).then(db => {