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I need to pass a variable from one page to another?Asked by evbf on May 06, 2016 at 04:08 PM
If you need to pass value to your form, the best option is to do it true URL query.
You could use the method from this guide - Prepopulating-fields-to-your-JotForm-via-URL-parameters, and use your script to generate the query string for the iframe URL.