Symlink ewwwio_is_file problem

Hi there,

we want to use your plugin and had some troubles in combination with our hoster freistilbox.com . For security reasons all code is readonly and can only be deployed via git. Every apache writable folder is symlinked into the system. So the ewww folder in wp-content is a symlink to a folder on our storage server.

The function ewwwio_is_file in common.php tries to check folder paths by resolving the realpath. That does not work with symlinks. That’s why we got the error that webp is missing even though it was not. We commented out the lines 3560-3567 (stable tag 6.1.2) and now it works fine.

Would be great if you could fix that.

Thanks in advance
Edward