CONSOLE ERROR: Refused to display 'http://web-platform.test:8001/x-frame-options/support/xfo.py?value=SAMEORIGIN&value2=DENY' in a frame because it set multiple 'X-Frame-Options' headers with conflicting values ('SAMEORIGIN, DENY'). Falling back to 'deny'.
CONSOLE ERROR: Refused to display 'http://web-platform.test:8001/x-frame-options/support/xfo.py?value=DENY&value2=SAMEORIGIN' in a frame because it set multiple 'X-Frame-Options' headers with conflicting values ('DENY, SAMEORIGIN'). Falling back to 'deny'.
CONSOLE ERROR: Refused to display 'http://web-platform.test:8001/x-frame-options/support/xfo.py?value=INVALID&value2=SAMEORIGIN' in a frame because it set multiple 'X-Frame-Options' headers with conflicting values ('INVALID, SAMEORIGIN'). Falling back to 'deny'.
CONSOLE ERROR: Refused to display 'http://web-platform.test:8001/x-frame-options/support/xfo.py?value=SAMEORIGIN&value2=INVALID' in a frame because it set multiple 'X-Frame-Options' headers with conflicting values ('SAMEORIGIN, INVALID'). Falling back to 'deny'.
CONSOLE ERROR: Refused to display 'http://www.web-platform.test:8001/x-frame-options/support/xfo.py?value=SAMEORIGIN&value2=SAMEORIGIN' in a frame because it set 'X-Frame-Options' to 'sameorigin'.
