Removing Google Maps and other services from the Cookie Blocker

Adding hooks and filters to your functions.php



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WordPress offers filter hooks to allow plugins to modify various types of internal data at runtime.

A plugin can modify data by binding a callback to a filter hook. When the filter is later applied, each bound callback is run in order of priority, and given the opportunity to modify a value by returning a new value.

The following example shows how a callback function is bound to a filter hook.

Note that $example is passed to the callback, (maybe) modified, then returned:

function example_callback( $example ) {
    // Maybe modify $example in some way.
    return $example;
add_filter( 'example_filter', 'example_callback' );

If you want to know more, before adding your first add_filter(), see below source. If it’s now your first time, see our collection of filters below.


For example: Google Maps iFrame

Did you implement Google Maps with an iFrame? You can “unset” the iFrame from the Cookie Blocker with the following steps:

1. Find the Source URL:

This is a regular iFrame source from Google. The blue URL is an example of the URL you should copy.

iframe src=”!1m18!1m12!1m3!1d19110.61969858318!” width=”600″ height=”450″ frameborder=”0″ style=”border:0″ allowfullscreen /iframe

2. Paste your source URL in the filter below

 * Filter urls for iframes that should be blocked
 * @param array $iframe_tags
 * @return array $iframe_tags

function cmplz_edit_iframe_tags($iframe_tags){

    return $iframe_tags;
add_filter('cmplz_known_iframe_tags', 'cmplz_edit_iframe_tags');

3. Add above filter to your themes functions.php

  1. Find your themes functions.php in your website folder. It should look like wp-content/themes/(your-active-theme)/functions.php
    * when using a child theme, please choose the functions.php from your child’s theme.
  2. Back-up your functions.php before adding the filter
  3. Add your filter using WordPad, Notepad or your favorite text editor.
  4. Save and overwrite your current functions.php. Keep your back-up ready if something happens.

4. It should now be removed from our Cookie Blocker list.

Are you using an API, or do you want to unblock other services? Have a look at all our other filters.

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