syntax error, unexpected ‘”‘ in ttl_registry.php on line 1

Got this entry in debug.log:

PHP Parse error: syntax error, unexpected '"' in /wp-content/wp-cloudflare-super-page-cache/domain.com/ttl_registry.php on line 1

After further investigation, noticed that the generated page /wp-content/wp-cloudflare-super-page-cache/domain.com/ttl_registry.php is containing a long JSON string populated this way: $swcfpc_ttl_registry='{\"my_page1.html\":0,\"my_page2.html\":0}';

Escaped quotes like \" aren’t a proper JSON syntax, according the JSON Validator, so to validate such string would need to be formatted like this instead:

$swcfpc_ttl_registry='{"my_page1.html":0,"my_page2.html":0}';

To achieve that would need to modify \plugins\wp-cloudflare-page-cache\libs\fallback_cache.class.php line 69 from this:

file_put_contents( $cache_path."ttl_registry.php", "<?php \$swcfpc_ttl_registry='".addslashes( json_encode($this->fallback_cache_ttl_registry) )."'; ?>");

to this:

file_put_contents( $cache_path."ttl_registry.php", "<?php \$swcfpc_ttl_registry='".json_encode($this->fallback_cache_ttl_registry)."'; ?>");

As this was a singular issue for now, I’m not sure if this is a bug, or there’s a reasoning behind such unorthodox escape.