1.7 Does Not Work with IE11

Thanks for reporting this. I have identified the problem and will try to fix it as soon as I can.

Hello Jules. Just checking back to see if you had time to fix the IE11/Edge problem?

I can’t access the site anymore. Are you using a captcha plugin or did you configure CF 7 with the built in recaptcha solution?

I suspect your error might be related to this one: https://www.ads-software.com/support/topic/error-in-ie-3/#post-12076080

Can you give it another look now. I don’t use captcha or recaptcha however I noticed if I disable the plugin “Material Design for Contact Form 7 (Premium)” the conditional fields work. My guess your code and their’s have conflicting issues in IE11. The site can be reviewed here: https://graphics.analyticalcorp.biz/