.htaccess SCRIPT_FILENAME doesn't read Ampersand '&' sign

[faizananwerali]

.htaccess

RewriteEngine On

# Redirect images to webp-on-demand.php (if browser supports webp)
RewriteCond %{HTTP_ACCEPT} image/webp
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^(.*)\.(jpe?g|png)$ webp-on-demand.php?source=%{SCRIPT_FILENAME} [NC,L]

webp-on-demand.php

echo $source = $_GET['source'];

File Name:

B Tours & Travel Front Ad.jpg

URL:

 https://www.example.com/storage/upload_assets/B%20Tours%20%26%20Travel%20Front%20Ad.jpg
 https://www.example.com/storage/upload_assets/B%20Tours%20&%20Travel%20Front%20Ad.jpg

Error:

/home/visionph/example.com/public/storage/upload_assets/B Tours
Fatal error: Uncaught WebPConvert\Exceptions\InvalidInput\TargetNotFoundException: source file was not found in /home/visionph/example.com/vendor/rosell-dk/webp-convert/src/Helpers/PathChecker.php:71 
Stack trace: 
#0 /home/visionph/example.com/vendor/rosell-dk/webp-convert/src/Helpers/PathChecker.php(85): WebPConvert\Helpers\PathChecker::checkAbsolutePathAndExists('/home/visionph/...', 'source') 
#1 /home/visionph/example.com/vendor/rosell-dk/webp-convert/src/Helpers/InputValidator.php(47): WebPConvert\Helpers\PathChecker::checkSourcePath('/home/visionph/...') 
#2 /home/visionph/example.com/vendor/rosell-dk/webp-convert/src/Helpers/InputValidator.php(58): WebPConvert\Helpers\InputValidator::checkSource('/home/visionph/...') 
#3 /home/visionph/example.com/vendor/rosell-dk/webp-convert/src/Serve/ServeConvertedWebP.php(135): WebPConvert\Helpers\InputValidator::checkSourceAndDestination('/home/visionph/...', '/home/visionph/...') 
#4 /home/visionph/example.com/vendor/rosell-dk/ in /home/visionph/example.com/vendor/rosell-dk/webp-convert/src/Helpers/PathChecker.php on line 71