k1sul1

It’s possible and even likely that your theme or some plugin conflicts with the save logic.

Or you’re simply submitting the form twice.

If it reproduces with twentyseventeen (or any theme that ships with WP) and no plugins then it’s a bug in our code.

In the future, you’re going to have better luck getting support if you send an issue at GitHub: https://github.com/libreform/wp-libre-form

Hi, and sorry for the delayed response. I did get a notification, but it was buried under 700 other emails on my secondary email address.

I installed 2.3.9 (with the link you provided) on a fresh site and now there’s no extra meta fields, so I guess it’s fixed ??

About WP Libre Form: it is! Most of the time Gravity Forms or Ninja Forms is a “bit” overkill and not-so-developer friendly, so if the client doesn’t want to edit or add forms by themselves it’s my first pick.

Great! ??

Great.

While the original code was probably meant to check that either of these current_theme_supports is true, and only then check if there’s a need for a leading slash, my issue points out that maybe you should check for the leading slash in any case. If there’s no leading slash for whatever reason, it should be safe to add one.

Browsers / servers(not sure which, tested with IE/Chrome/FF) don’t seem to care even if there are extra slashes, take this for example: https://ajax.googleapis.com/////ajax/libs/jquery/3.1.1/jquery.min.js