How can I easily pull custom parameters from a page URL and replace them with placeholders in Webflow?

To replace custom parameters in a Webflow page URL with placeholders, you can use JavaScript to parse and modify the URL. Here's a step-by-step process:

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1. Identify Parameters

• Determine which URL parameters you need to replace with placeholders. These could be parameters like ?productID=12345.

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2. Add Embed Code

• Go to your Webflow Designer. 
• Open the page where you want to manipulate URL parameters.
• Insert an Embed element on your page by clicking on the Add Elements panel and selecting the Embed option under Components.

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3. Insert JavaScript

• Input JavaScript within the Embed Code Block to extract and update the URL parameters.
• For example, use the URLSearchParams interface to get and replace parameters:

  ```

  <script>

    const urlParams = new URLSearchParams(window.location.search);

    const productID = urlParams.get('productID');

    if (productID) {

      // Perform action with productID or replace with a placeholder

      urlParams.set('productID', 'placeholder');

      const newUrl = window.location.pathname + '?' + urlParams.toString();

      window.history.replaceState({}, '', newUrl);

    }

  </script>

  ```

• Replace 'productID' and 'placeholder' with your actual parameter and desired placeholder.

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4. Save and Publish

• Save your embed code.
• Publish your Webflow site to apply the changes.

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5. Test the Functionality

• Visit your live website. 
• Check if the parameters are being correctly replaced with placeholders in the URL.

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Summary

By embedding JavaScript into your Webflow project, you can dynamically replace URL parameters with placeholders. This involves identifying the parameters, inserting an Embed Code in Webflow, using JavaScript to modify the URL, and verifying the changes by testing on your published site.