/usr/share/tripleo-image-elements/novnc/source-repository-novnc is in python-tripleo-image-elements 0.7.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | novnc git /opt/stack/novnc https://github.com/kanaka/noVNC.git
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