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Thread: Extjs form submit error

  1. #1
    Sencha Premium User
    Join Date
    May 2018

    Default Extjs form submit error

    I am having a form with filefield. This file field is optional. When we submit the form using form.submit() function, sometimes it gives a error Ext.JSON.decode() and request is not running. I tried to debug the issue and it seems like the issue is throwing in beforeAjaxSubmit callback. Console trace is attached.
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  2. #2
    Sencha - Forum Administrator
    Join Date
    Sep 2017


    Good evening! I apologize for the trouble- this is being sent over to the support team for review and we will look into this at our earliest convenience. Thank you for your patience!


  3. #3
    Ext Support Team
    Join Date
    Jan 2018


    Hello there,

    Your AJAX response is not a pure JSON. Try to output the response in console and check if the response is pure JSON.
    A file upload expects you to return a json response the same way you would for a normal form submit. The way to solve it is add a valid JSON string to the server side code.

    Sencha Support.

  4. #4
    Sencha Premium User
    Join Date
    May 2018


    Hi Kumar,

    The issue is this error comes before sending the request to the server and it comes only in some occasions, No particular pattern.

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