private void cleanAttemptedAuthentication(final WebContext context, final SessionStore sessionStore) {
        logger.debug("clean authentication attempt from session");
        sessionStore.set(context, getName() + ATTEMPTED_AUTHENTICATION_SUFFIX, null);
    }
<p>computeFinalCallbackUrl.</p>

@param context a {@link WebContext} object
@return a {@link String} object
pac4j-core/src/main/java/org/pac4j/core/client/IndirectClient.java