When I run php-closure i get a PHP error
Undefined index: HTTP_IF_NONE_MATCH in <b>/php-closure.php</b> on line <b>183</b>
Line 184 of php-closure is
trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag) {
This error only happens when closure has already written the compressed javascript file to the directory once, if the directory is emptied the error does not appear. What does this error mean and how can I avoid it?
Thank You So Much!