Thank you page is not redirecting after successful submission of form

Same here…the donut thing keeps spinning at the submit button…

After some researching, I found that it is probably caused by Javascript conflicts. I de-activated my Lightbox plugin, that caused the issue, it is now working as expected.

I have the same problem!
CF7 send a email twice(!) and then page is not redirecting.
I have an error:

Unable to load the webpage because the server sent no data. Reload this webpage. Press the reload button to resubmit the data needed to load the page. Error code: ERR_EMPTY_RESPONSE

how can I solve this problem?

@varsha27 – This could be due to a Javascript conflict with either your current WordPress theme or one of the other plugins you are using – see Contact Form 7 Email Issues – there is a link there that covers Javascript Conflicts.

on_sent_ok is the generally the absolutely last thing that runs in CF7 so any interferring Javascript Conflict can stop this running.

@zagazat – As per the Forum Welcome, please post your own topic.

Posting in an existing topic and taking over the original posters question is generally considered inappropriate.

Added to which, your problem – despite any similarity in symptoms – is likely to be completely different.