How to remove domains within HTML Field Security settings via powershell

Question

As the title states, I am working on a script and need to have the ability to remove links from the allowed domains section of HTML Field Security of Sharepoint Online.....

as an example the below code successfully adds links.

Set Variables

$SiteURL = "https://crescentintranet.sharepoint.com/sites/marketing"

Connect to PnP Online

Connect-PnPOnline -Url $SiteURL -UseWebLogin

Get the Site

$Site = Get-PnPSite -Includes CustomScriptSafeDomains

Add domain

$Domain = [Microsoft.SharePoint.Client.ScriptSafeDomainEntityData]::new()
$Domain.DomainName = "products.crescent.com"
$Site.CustomScriptSafeDomains.Create($Domain)
Invoke-PnPQuery

Answer 1

Solved this with the following code

$removed= $Site.CustomScriptSafeDomains.GetByDomainName("test.com")
$removed.deleteobject()

Answer 2

Hi @Anonymous ,

You could try to remove links manully:

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Answer 3

Hello RowdeyCooper,

Your code seems completely fine to me.

But before code execution Add Trusted Domain To HTML Field security List using the below step.

Online Site Collection >> Site Settings >> Select "HTML Field Security" from Site Collection Administration.

Choose Allow Contributors to insert iframe" Option

Add your preference and Click Ok.

and consider Switching On the Custom Script before the process.

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Hope this answers all your queries, if not please do repost back.
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