WLA_RESPONSE_TIMEOUT

The downloading time was longer then the value in the "timeout" property.

WLA_UNKNOWN_RESPONSE

The response code from the server was not between 200 and 299.

WLA_TRANSFORMATION_ERROR

Some error happened when transforming the downloaded page using the XSLT file.

WLA_XPATH_ERROR

Some error happened when applying xpath.

WLA_MALFORMED_URL

The dynamically constructed url was malformed.

WLA_EMPTY_VALUE_FOUND

No value found in the document when xpath was used.