value = context.response.header[line['attr']]
assert re.fullmatch(line['value'], value) is not None, \
f"Attribute '{line['attr']}': expected: '{line['value']}', got '{value}'"
value = context.response.header[line['attr']]
assert re.fullmatch(line['value'], value) is not None, \
f"Attribute '{line['attr']}': expected: '{line['value']}', got '{value}'"