The onresourcetimingbufferfull property is an event handler that will be called when the resourcetimingbufferfull event is fired. This event is fired when the browser's resource timing performance buffer is full.

Note: This feature is available in Web Workers.


callback = performance.onresourcetimingbufferfull = buffer_full_cb;

Return value

An EventHandler that is invoked when the resourcetimingbufferfull event is fired.


The following example sets a callback function on the onresourcetimingbufferfull property.

function buffer_full(event) {
  console.log("WARNING: Resource Timing Buffer is FULL!");
function init() {
  // Set a callback if the resource buffer becomes filled
  performance.onresourcetimingbufferfull = buffer_full;
<body onload="init()">


Specification Status Comment
Resource Timing Level 1
The definition of 'onresourcetimingbufferfull' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

BCD tables only load in the browser

See also