Your Search Results


    This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.

    This API is available on Firefox OS for privileged or certified applications only.


    The onerror property is used to specify a callback handler to deal with errors from the server socket. This callback is called each time the listen of a server socket is aborted.

    The data attribute of the event object passed to the onerror handler is a string describing the error.


    instanceOfTCPServerSocket.onerror = funcRef

    Where funcRef is a function to be called on errors.

    This callback function will get an event object as its first parameter with a data property which is a string.


    var server = navigator.mozTCPSocket.listen(-1);
    server.onerror = function (evt) {
      var error =;


    Not part of any specification yet; however, this API is discussed at W3C as part of the System Applications Working Group under the Raw Sockets proposal.

    See also

    Document Tags and Contributors

    Contributors to this page: teoli, kscarfone, Jeremie
    Last updated by: teoli,