crossorigin attribute not being set

[jcbvm]

When I enable SRI with:

SRI: {
    enabled: true,
    crossorigin: 'anonymous'
}

the crossorigin attribute will not be set, the integrity attribute does however.
Am I missing something, fingerprinting is disabled in my setup and no origin is given.

[pdehlke]

Experimentation shows that if you don't have a prepend: directive in the fingerprint: options, crossorigin: doesn't get set. @jonathanKingston ping.