MIME-153 — The proxy is unable to close the file with definitions of MIME types
In HTTP protocol, server indicates to client the MIME type of response data using Content-Type header. If the header is missing, proxy tries to guess the type from the suffix of the request URI. During initialization, the proxy reads a file which defines mapping from suffixes to MIME types. If the file cannot be read till the end and properly closed, the proxy cannot be started.