Use Java to Load HTML File in Code Block

Is there a way to use Java to tell a code block to load the contents of an HTML file already uploaded to squarespace? This solution is needed to be able to make a change to one file that could apply across hundreds of blog posts at the same time.

When I used an iframe and put the source url in the code block to the file, squarespace simply downloads the file every time the page is loaded instead of displaying the content in the file, which is why I thought Java was the solution.

6 minutes ago, noahawaii said:

Is there a way to use Java to tell a code block to load the contents of an HTML file already uploaded to squarespace?

Can you tell us the problem you are trying to solve? Why do you need to load something? What is it for?

A link to the page on the site will also help the community to provide an answer.

By the way, I think you're referring to JavaScript. Java is an entirely different programming language.

12 minutes ago, paul2009 said:

Can you tell us the problem you are trying to solve? Why do you need to load something? What is it for?

A link to the page on the site will also help the community to provide an answer.

By the way, I think you're referring to JavaScript. Java is an entirely different programming language.

Yes I am referring to javascript. My website is in there, but I don't think it's useful for this kind of solution. 

I need to load the html contents of an html file within a code block, and I figured javascript would be the best solution.

I don't have a specific solution but a comment on a possible direction.

The general pattern some of us have used is to load ones content into a code block in the footer, hide that block, then use JavaScript to move the code into place.

I had to pay someone for this solution.