Import JavaScript with Shortcode Exec PHP

For some reasons I’ve to include a javascript file into a post, but WordPress is always destroying the script with a lot of <p>.

For this I include the file via require and return the variable to output what’s inside the file.

This is very nasty, and I don’t know why.
“Disable wpautop” is checked.

Any idea?

https://wordpress.org/plugins/shortcode-exec-php/