timer-override | eyeo Developer Documentation

Description

Changes the behaviour of setTimeout and setInterval calls on a page. It can make timers fire sooner or much later than intended, or disable the callback entirely — useful for defusing ad-detection timers or forcing time-sensitive ad logic to behave differently.

Parameters

Name	Description	Mandatory
timerValue	New timer delay in milliseconds.	yes
needle	Only override calls whose parameters (callback source or delay) match this string or regex.	no
mode	Which timer type to override: `"timeout"`, `"interval"`, or `"both"` (default).	no
callbackFunc	Pass `"noop"` to replace the callback with a no-operation function instead of just changing the delay.	no
stackNeedle	Space-separated strings or regexes that must appear in the call stack for the override to apply.	no

Filter Examples

Filter	Result
`timer-override 1 5000`	Makes any `setTimeout`/`setInterval` with a 5000 ms delay fire in 1 ms instead.
`timer-override 1 preventAdsFromClosing`	Fires matching timers in 1 ms if their callback contains preventAdsFromClosing.
`timer-override 1000000 checkIfAdsAreHidden`	Delays matching timers to effectively never fire.
`timer-override 5000 checkIfAdsAreHidden noop`	Replaces the callback with a no-op for matching timers.