=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 302 Found
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Expires: Sat, 01 Jan 2000 00:00:00 GMT
X-XSS-Protection: 0
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X-Frame-Options: DENY
Pragma: no-cache
Strict-Transport-Security: max-age=15552000; preload
Location: https://www.facebook.com/login/?next=https%3A%2F%2Fwww.facebook.com%2Fgroups%2Filssdp%2F
Access-Control-Expose-Headers: X-FB-Debug, X-Loader-Length
Access-Control-Allow-Credentials: true
X-Content-Type-Options: nosniff
Vary: Origin
Cache-Control: private, no-cache, no-store, must-revalidate
Access-Control-Allow-Origin: https://www.facebook.com
Access-Control-Allow-Methods: OPTIONS
Content-Type: text/html; charset=&quot;utf-8&quot;
X-FB-Debug: MboT95g1bcm1cLJLS5SgEdJUVwjFD762swzal7ohPLN5mAhwdmAZf5OJTMEyouzz/ol5RzULRBZvn7ub3Bc+fg==
Date: Mon, 29 Jul 2019 00:43:55 GMT
Connection: close
Content-Length: 0

HTTP/1.1 200 OK
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Expires: Sat, 01 Jan 2000 00:00:00 GMT
X-XSS-Protection: 0
content-security-policy: default-src * data: blob: 'self';script-src *.facebook.com *.fbcdn.net *.facebook.net *.google-analytics.com *.virtualearth.net *.google.com 127.0.0.1:* *.spotilocal.com:* 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' *;connect-src *.facebook.com facebook.com *.fbcdn.net *.facebook.net *.spotilocal.com:* wss://*.facebook.com:* https://fb.scanandcleanlocal.com:* attachment.fbsbx.com ws://localhost:* blob: *.cdninstagram.com 'self' chrome-extension://boadgeojelhgndaghljhdicfkmllpafd chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm;
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Strict-Transport-Security: max-age=15552000; preload
Access-Control-Expose-Headers: X-FB-Debug, X-Loader-Length
Access-Control-Allow-Credentials: true
X-Content-Type-Options: nosniff
Vary: Origin
Vary: Accept-Encoding
Cache-Control: private, no-cache, no-store, must-revalidate
Access-Control-Allow-Origin: https://www.facebook.com
Access-Control-Allow-Methods: OPTIONS
Content-Type: text/html; charset=&quot;utf-8&quot;
X-FB-Debug: 8bOuzuhyLlHxHpsU2pvzb6caiS4trFm7HmKM1/9XFLyRJ4/kuMMp4RNykgAr+11FyyjGd0mEPEYQ/A2urWHiPw==
Date: Mon, 29 Jul 2019 00:43:55 GMT
Transfer-Encoding: chunked
Connection: close

Request headers
================
HEAD /login/?next=https%3A%2F%2Fwww.facebook.com%2Fgroups%2Filssdp%2F HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Host: www.facebook.com
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.