Problem with https and update.

It is great to see a new update, however this doesn’t work on my system because the frames / popups are blocked due to security issues related to http/https mixing.

If I access the wp-admin with HTTPS, I get the following error:
[blocked] The page at ‘https://mywebsite.com/wp-admin/edit.php?post_type=shop_order’ was loaded over HTTPS, but ran insecure content from ‘http://mywebsite.com/my-account/print-order/1744/?print-order-type=invoice’: this content should also be loaded over HTTPS.

If I access the wp-admin with HTTP, I get the following error:
Uncaught SecurityError: Blocked a frame with origin “http://mywebsite.com” from accessing a frame with origin “https://mywebsite.com”. The frame requesting access has a protocol of “http”, the frame being accessed has a protocol of “https”. Protocols must match.

This is because my theme enforces HTTPS for anything under /myaccount

It appears that get_permalink always returns “http://”?
My current solution is to make the link relative and access wp-admin via https.

In the following function, I modified the $permalink to be relative instead of hard coding “http”

public function get_print_page_url( $order_ids, $template_type = 'order', $order_email = null ) {
...
// Generate the url
$permalink = get_permalink( wc_get_page_id( 'myaccount' ) );

// Make the permalink relative
$permalink = str_replace( home_url(), "", $permalink );
...

Is there a better approach to solving this? I’d love to see some fix that doesn’t involve me hacking the code for future updates.

Thanks.

https://wordpress.org/plugins/woocommerce-delivery-notes/