Burchard

perfect, thanks!

Design > Site Styles > Disable Ajax Loading

That worked like a charm, thanks a lot! I imagine this will be helpful for others as well, thank you for your generosity in sharing your skills and the code, much appreciated!

In part the failure is mine. I had a syntax error in my code.
Replace the following in the code...
      /* '[enter selector source here between single quotes replacing square brackets]' : {                selectorDestination : '[enter selector destination here between single quotes replacing square brackets]',                  /*                    selectorParentDestination is optional, use when you want to first find           a selector destination but then work up the ancestor hierarchy to           manipulate it                      */                  selectorParentDestination : '.sqs-block-code',                  action : 'replace' // values are append or replace                  }, */                '#block-yui_3_17_2_1_1686202370694_2971' : {                selectorDestination : 'x-placeholder',                  /*                    selectorParentDestination is optional, use when you want to first find           a selector destination but then work up the ancestor hierarchy to           manipulate it                      */                    selectorParentDestination : '.sqs-block-code',                  action : 'replace' // values are append, prepend or replace                  },          ...with the following code.
      /* '[enter selector source here between single quotes replacing square brackets]' : {                selectorDestination : '[enter selector destination here between single quotes replacing square brackets]',                  // selectorParentDestination is optional, use when you want to first         // find a selector destination but then work up the ancestor hierarchy         // to manipulate it                  selectorParentDestination : '[enter selector parent destination here between single quotes replacing square brackets]',                  action : 'append' // values are append or replace                  }, */                '#block-yui_3_17_2_1_1686202370694_2971' : {                selectorDestination : 'x-placeholder',                  // selectorParentDestination is optional, use when you want to first         // find a selector destination but then work up the ancestor hierarchy         // to manipulate it                  selectorParentDestination : '.sqs-block-code',                  action : 'replace' // values are append, prepend or replace                  },          Replace your footer hiding CSS with the following.
html:not( .squarespace-damask ) .Footer #block-yui_3_17_2_1_1686202370694_2971 {   display : none;      } Let us know how it goes.

For the 'additional info' below a product, I would like to use a code block that loads pre-formatted text from a file on my web server (either uploaded through the Squarespace interface or via FTP, whichever works best). I want to do this so that I can change the additional information for all products on the website at once, by changing only one document, instead of manually going through all products one by one. It would save a lot of time,and minimize the chance of errors.
The website is built on 7.0 in the Brine family.
How can such a thing be achieved? Thanks for your input.

To hide Mobile Primary, use this code
<style> nav.Mobile-overlay-nav.Mobile-overlay-nav--primary { display: none; } </style> To hide Mobile Secondary, use this code
<style> nav.Mobile-overlay-nav.Mobile-overlay-nav--secondary { display: none; } </style>  

To hide primary on one page, add this to Page Settings > Advanced > Header (If you use Personal Plan > Add Code Block)
<style> nav.Header-nav.Header-nav--primary { display: none; } </style> To hide secondary, use this code
<style> nav.Header-nav.Header-nav--secondary { display: none; } </style> You can also use these guides to create multi language sites
bradgood.net/articles/multi-language-content-on-any-squarespace-template https://beaverhero.com/squarespace-2-languages/

Same requirement in our biz. We're coming off Weebly and shopping eCommerce platform vendors, developer wants us to go SquareSpace, but only WooCommerce seems to have the per item shipping. This will cost us more on web production, but we'll not lose on shipping $.     SQSP would be a slam dunk if this was enabled.
I echo another comment in different same topic thread:  "Hurry up SQSP and get this feature implemented.  I am losing money on shipping and actively searching for an alternative platform. "   +1  

Fixed it after some fiddling around.
I added the social links to the header in the Site Styles.
Then I copied the piece of code Squarespace uses to add the icons in the header.
I pasted this in a code block in the footer and used CSS to position it.
I then turned the social links off again in the Site Styles.
That's it, works like a charm 🙂