Help fixing 'Uncheck all' code on preference centre page
Hi,
I know there's a few threads about this and I've tried following the solutions like the one here: https://nation.marketo.com/t5/product-discussions/subscription-preference-center-page-forms-and-unchecking-all/m-p/310820#M175490 but I can't work out what I'm doing wrong with the code to make this work.
We have a preference centre for subscribers to opt in and out of our various emails and when they visit it's pre-populated with ticks for their relevant subscriptions. When they check the 'Unsubscribe from all' I want it to untick all those boxes, I've tried the solutions in a few threads like the above from @sanfordwhiteman but it's not working for me.
Can anyone see what I'm doing wrong from this page: https://go.wilmingtonplc.com/Axco-Manage-Your-Communication-Preferences.html

