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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.

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    Uncaught TypeError Issue

    Asked by zachlmoss on April 26, 2017 at 03:34 PM


    Looking at console my embed is constantly throwing the following error over and over again:


    Uncaught TypeError: e.data.split is not a function

        at window.handleIFrameMessage (63556161887164:25)


    Removing the jotform clears the error so I know its being caused from Jotform. 


    I have tested using embed method and the iFrame method with the same issues.

    Page URL:

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    JotForm Support

    Answered by Kevin_G on April 26, 2017 at 05:25 PM

    I have checked your webpage and I was unable to find such errors in the web console. 

    However, that may be due to a conflict between the form and webpage codes, I would suggest you to try embedding your form using the iFrame code and removing all the JavaScript part, so the code should be like this one: 












    Please, do let us know how it goes. 

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    Answered by zachlmoss on April 26, 2017 at 05:57 PM

    Weird, just tried on a guest browser and no error. Must be something to do with an extension i have installed on my chrome.


    All good. Thanks for the quick response.