---
title: New feature - Iframe URLs by expression
description: Learn about the latest feature added to the Betty Blocks platform - Iframe URLs by expression. This new feature allows for dynamic iframe URLs based on expression definitions. Read more about it here.
---

[Product changes ](https://blog.bettyblocks.com/product-changes)

# [New feature - Iframe URLs by expression](https://blog.bettyblocks.com/product-changes/new-feature-iframe-urls-by-expression)

 Written by [Peter Arentsen](https://blog.bettyblocks.com/product-changes/author/peter-arentsen) | Apr 27, 2017 12:29:00 PM

We have added the iframe URLs by expression feature at pages in the back office module. You can now create iframe URLs based on an expression definition instead of using hardcoded URLs. This new feature helps when you have different URLs between sandbox environments of your application. The insert variable button and variables tab is opened by clicking the checkbox 'Use expression'.

 

Dynamic iframe URLs by using expressions

 

[View full post](https://blog.bettyblocks.com/product-changes/new-feature-iframe-urls-by-expression)

```json
{
  "@context" : "http://schema.org",
  "@type" : "BlogPosting",
  "author" : {
    "@type" : "Person",
    "name" : "Peter Arentsen"
  },
  "dateModified" : "2023-06-19T13:47:25.853Z",
  "datePublished" : "2017-04-27T12:29:00Z",
  "headline" : "New feature - Iframe URLs by expression",
  "image" : {
    "@type" : "ImageObject",
    "height" : 60,
    "url" : "/hs/hsstatic/content_shared_assets/static-1.4092/img/default-amp-logo.png",
    "width" : 60
  },
  "mainEntityOfPage" : "https://blog.bettyblocks.com/product-changes/new-feature-iframe-urls-by-expression",
  "publisher" : {
    "@type" : "Organization",
    "logo" : {
      "@type" : "ImageObject",
      "height" : 60,
      "url" : "/hs/hsstatic/content_shared_assets/static-1.4092/img/default-amp-logo.png",
      "width" : 60
    },
    "name" : "Product changes"
  }
}
```