getHeader method
Implementation
String? getHeader(String name) {
String? value = parameters?[name];
if (value != null) {
// charset
// filename
return value;
}
switch (name.toLowerCase()) {
// case 'encoding':
// return encoding;
case 'mime-type':
return mimeType;
case 'content-type':
return mimeType;
}
return null;
}