[Svn] [roundcube/roundcubemail] f9c590: Remove x_frame_options env

[GitHub]

  Branch: refs/heads/release-1.3
  Home:   https://github.com/roundcube/roundcubemail
  Commit: f9c590621bf2808a211a50821eb8edff277244b5
      https://github.com/roundcube/roundcubemail/commit/f9c590621bf2808a211a50821eb8edff277244b5
  Author: Aleksander Machniak <alec at alec.pl>
  Date:   2018-01-07 (Sun, 07 Jan 2018)

  Changed paths:
    M program/include/rcmail_output_html.php

  Log Message:
  -----------
  Remove x_frame_options env