Filters the list of allowed file extensions when sideloading an image from a URL.

The default allowed extensions are:

• jpg
• jpeg
• jpe
• png
• gif

$allowed_extensions string[]

Array of allowed file extensions.

$file string

The URL of the image to download.

File: wp-admin/includes/media.php. View all references

$allowed_extensions = apply_filters( 'image_sideload_extensions', $allowed_extensions, $file );