iFrame Blocker

Premium feature.

An embedded YouTube video sets cookies and transfers data the moment the iFrame loads — regardless of whether anyone starts the video. The iFrame blocker prevents that without you having to touch your content.

How it works

The plugin scans the page for <iframe> elements whose source belongs to a blocked domain. If consent for the assigned group is missing, the src attribute is removed and a placeholder is shown instead:

A note stating which provider supplies the content
An Accept & load content button
A Always load (remember setting) checkbox — grants consent for the whole group
An optional link to the privacy policy

As soon as consent exists — through the placeholder or through the banner — the src is written back and the iFrame loads without a page reload.

Built-in domain list

If the Blocked domains field is empty, this applies:

Domain	Group
`youtube.com`, `youtube-nocookie.com`	`marketing`
`google.com/maps`, `maps.google.com`	`comfort`
`vimeo.com`	`marketing`
`facebook.com`, `instagram.com`	`marketing`
`twitter.com`, `x.com`	`marketing`
`tiktok.com`	`marketing`

Custom domains

One mapping per line in the format domain=group:

youtube.com=marketing
openstreetmap.org=comfort
player.example.com=marketing

Your entries extend the built-in list; identical domains override its mapping. The group has to match the technical name of an active cookie group.

Changing the texts

The placeholder texts are snippets:

Snippet	Content
`prems-cookie-consent.iframe.notice`	Notice text, `%provider%` is replaced
`prems-cookie-consent.iframe.loadButton`	Button label
`prems-cookie-consent.iframe.rememberChoice`	Checkbox label
`prems-cookie-consent.iframe.privacyLink`	Label of the privacy link

Limits

Only <iframe> elements with a src attribute are detected. If an iFrame is injected later by JavaScript, the blocker does not catch it — attach such embeds to a blocked script or a <template> instead (see Cookie Consent Banner).
The placeholder takes width and height from the iFrame's attributes. Without them it uses full width and 220 px height.