console Error on single form instance – "Cannot read property 'length'"

  • The plugin seemed to work like a charm but I ran into some trouble trying to submit a single instance of a multipage form I have that is also running the Pro Add-ons: Coupons & Stripe.

    I noticed the error while testing coupon codes. When I enter a code with the “Gravity Forms: Multiple Form Instances” plugin activated the page doesn’t show that the coupon code is added or change the total. Troubleshooting this problem I found the error in the console and also that if I disabled the “Gravity Forms: Multiple Form Instances” plugin the error was gone and the coupons seemed to work fine.

    This is the console error:

    Uncaught TypeError: Cannot read property ‘length’ of undefined —– gravityforms.min.js?ver=1.9.19:1

    The part of the .js file referenced is here but the problem if fixed when “Gravity Forms: Multiple Form Instances” is deactivated:

    if (a.length < 4)

    https://www.ads-software.com/plugins/gravity-forms-multiple-form-instances/

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