Bug in concatenation

[artkanna]

There seems to be a bug in the concatenation code surrounding charsets, which adds a character that prevents files from downloading correctly:

When concatenating files, if any of them has a BOM present (or one of the files is UTF-8 encoded or contains unicode), the BOM should be stripped, prepended to the output, and the encoding headers updated.

Each file is modified from here:

nginx-http-concat/ngx-http-concat.php

Line 161 in 623aa7b

$buf = file_get_contents( $fullpath );

What’s needed is a check for a BOM, and if found, replace it with an empty string, and set a flag, and if that flag is found, prepend the BOM on the final output.