Undefined index: HTTP_USER_AGENT

  • I’m getting many PHP notices for “Undefined index: HTTP_USER_AGENT”

    [Wed Jan 18 11:40:13.552060 2017] [proxy_fcgi:error] [pid 4904:tid 139673479333632] [client 162.158.78.31:36474] AH01071: Got error ‘PHP message: PHP Notice: Undefined index: HTTP_USER_AGENT in /wp-content/plugins/redirection/models/redirect.php on line 349\n’

    The ip is belongs to Cloudflare is this just due to proxy identification? Normally I don’t care as much as a warning but this is an “error”.

    Feed back please?

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