Bug in REST API endpoint prevents forms submission

I confirm the same issue with 4.8.1.

+1.
The rest route is malformed

wpcf7.apiSettings.getRoute = function( path ) {
var url = wpcf7.apiSettings.root;

/*
url = url.replace(
wpcf7.apiSettings.namespace,
wpcf7.apiSettings.namespace + path );
*/

url = url + wpcf7.apiSettings.namespace + path // correct url

return url;
};

Any one got a fix for this as I just updated to 8.1 and non of my forms are working cant send anything and no send or error messages displaying?

same issue here, Just rollback to 4.8 everything working fine.

You can use this plugin to rollback: https://es.www.ads-software.com/plugins/wp-rollback/

My fix work only for me.
I’m in a particular case of WPMU, forget my reply.

sorry

Same issue here!
Is there any new idea how to fix this? I got a multisite installation and all forms are stuck with that error

Here’s the screenshot of the error on Console