onFocus() for Salesforce Classic not triggered

Question

Here is the document https://developer.salesforce.com/docs/atlas.en-us.api_cti.meta/api_cti/sforce_api_cti_onfocus.htm

The method is supposed to add a listener to call when the browser focus changes. However, it never gets call when I switch between tabs in the console.

Here is my js code

var callback = function (response) {
    if (response.result) {
        alert(response.result);
}};
sforce.interaction.onFocus(callback);

Answer 1

Are you calling sforce.interaction.onFocus(callback); code?

You need to call sforce.interaction.onFocus(callback); as mentioned in the docs link you provided.