IDBDatabase.onerror

The onerror event handler of the IDBDatabase interface handles the error event, fired when access to the database fails.

Note: This feature is available in Web Workers.

Syntax

IDBDatabase.onerror = function(error) { ... }

Example

This example shows an IDBOpenDBRequest.onupgradeneeded block that creates a new object store; it also includes onerror and onabort functions to handle non-success cases.

DBOpenRequest.onupgradeneeded = function(event) {
  var db = this.result;
  db.onerror = function(event) {
    note.innerHTML += '<li>Error opening database.</li>';
  };
  db.onabort = function(event) {
    note.innerHTML += '<li>Database opening aborted!</li>';
  };
  // Create an objectStore for this database
  var objectStore = db.createObjectStore("toDoList", { keyPath: "taskTitle" });
  // define what data items the objectStore will contain
  objectStore.createIndex("hours", "hours", { unique: false });
  objectStore.createIndex("minutes", "minutes", { unique: false });
  objectStore.createIndex("day", "day", { unique: false });
  objectStore.createIndex("month", "month", { unique: false });
  objectStore.createIndex("year", "year", { unique: false });
  objectStore.createIndex("notified", "notified", { unique: false });
  note.innerHTML += '<li>Object store created.</li>';
};

Specifications

Specification Status Comment
Indexed Database API
The definition of 'onerror' in that specification.
Recommendation  
Indexed Database API 2.0
The definition of 'onerror' in that specification.
Editor's Draft  

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 23webkit
24
(Yes) 10 moz
16.0 (16.0)
10, partial 15 7.1
Available in workers (Yes) (Yes) 37.0 (37.0) ? (Yes) ?
Indexed Database 2.0 58 ? ? ? 45 ?
Feature Android Webview Chrome for Android Edge Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) 22.0 (22.0) 1.0.1 10 22 8
Available in workers (Yes) (Yes) (Yes) 37.0 (37.0) (Yes) ? (Yes) ?
Indexed Database 2.0 58 58 ? ? ? ? 45 ?

See also

Document Tags and Contributors

 Contributors to this page: jpmedley, arronei, gnacu, libbymc, chrisdavidmills, fscholz
 Last updated by: jpmedley,