And did you set a valid content node as the redirect page (one that is published)?

Yes......Even thank you message is not showing up.......this behaviour when the site is mapped to a domain name.The local host version is working fine again,

FYI....Even error is not getting logged in umbracoLog table(so this means no error)

Can I view this behaviour somewhere or is the site not available?

The site is available but i can't expose the url.

1.Opening the contour in a JQuery modal popup using iframe

2. submiting data

3.Redirecting to a page within content node (where the code to close popup is placed)-the redirect page is published and working

4.but data is submitting but not redirecting throwing 404 error

Might be an issue with the setup, could you try placing the form on a template that isn't opened in a modal, just to see if it works there...

I think this could be a problem with respect to the extension missing, as we are using ssl certificate  and the pages without extensions(.aspx) is showing the same error .as the contour on redirection going  to 'thank-you' and it would work if it has 'thank-you.aspx'.Please advice.

I have no idea why the ssl enabled domain is not able to browse without extension.Please help

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