#1 - Sending the following line from Steam to Miranda: (This one isnt shown in the screenshot) No link was transmitted via the network log when the link was sent before text. (But the text was)
"https://imgur.com/gallery/vtqrco9 - Imgur Gallery Link"
Spoiler
[10:53:47 0AB4] [STEAM_1] (0000000007AFB590:1080) Data received
HTTP/1.1 200 OK
Content-Type: application/json; charset=UTF-8
Content-Length: 269
Expires: Fri, 03 Apr 2020 16:53:47 GMT
Date: Fri, 03 Apr 2020 16:53:47 GMT
Connection: close
{"pollid":0,"messages":[{"type":"saytext","timestamp":12029879,"utc_timestamp":1585932827,"steamid_from":"***REDACTED***","text":" - Imgur Gallery Link"}],"messagelast":39,"timestamp":12029879,"utc_timestamp":1585932827,"messagebase":38,"sectimeout":12,"error":"OK"}
[10:53:47 0AB4] [STEAM_1] (0000000007AFB590:1080) Data received
{"pollid":0,"messages":[{"type":"saytext","timestamp":12029879,"utc_timestamp":1585932827,"steamid_from":"***REDACTED***","text":" - Imgur Gallery Link"}],"messagelast":39,"timestamp":12029879,"utc_timestamp":1585932827,"messagebase":38,"sectimeout":12,"error":"OK"}
[10:53:47 0AB4] [STEAM_1] (0000000007AFB590:1080) Connection closed internal
[10:53:47 0AB4] [STEAM_1] (0000000007AFB590:4294967295) Connection closed
[10:53:47 0AB4] [STEAM_1] Connection request to api.steampowered.com:443 (Flags 11)....
[10:53:47 0AB4] [STEAM_1] (0000000007AFC1F0) Connecting to server api.steampowered.com:443....
[10:53:47 0AB4] [STEAM_1] (0000000007AFC1F0) Connecting to ip 23.204.57.164:443 ....
[10:53:47 0AB4] [STEAM_1] (1080) Connected to api.steampowered.com:443
[10:53:47 0AB4] [STEAM_1] (1080 api.steampowered.com) Starting SSL negotiation
[10:53:47 0AB4] [STEAM_1] (1080 api.steampowered.com) SSL negotiation successful
[10:53:47 0AB4] [STEAM_1] (0000000007AFC1F0:1080) Data sent
POST /ISteamWebUserPresenceOAuth/Poll/v0001 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Miranda/0.95.12.22738 (x64)
Accept-Encoding: deflate, gzip
Host: api.steampowered.com
Connection: Keep-Alive
Proxy-Connection: Keep-Alive
Content-Length: 110
access_token=***REDACTED***&umqid=***REDACTED***&message=39&secidletime=0§imeout=30
#2 - Sending the following lines in a single message from Steam to Miranda: (Sandwiching the link between text (sometimes) causes the link to show up in Miranda.)
Test
"https://imgur.com/gallery/vtqrco9
Test
Spoiler
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Data received
HTTP/1.1 200 OK
Content-Type: application/json; charset=UTF-8
Content-Length: 297
Expires: Fri, 03 Apr 2020 17:08:04 GMT
Date: Fri, 03 Apr 2020 17:08:04 GMT
Connection: close
{"pollid":0,"messages":[{"type":"saytext","timestamp":12886538,"utc_timestamp":1585933683,"steamid_from":"***REDACTED***","text":"Test\n\nhttps://imgur.com/gallery/vtqrco9\n\nTest"}],"messagelast":50,"timestamp":12886538,"utc_timestamp":1585933683,"messagebase":49,"sectimeout":12,"error":"OK"}
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Data received
{"pollid":0,"messages":[{"type":"saytext","timestamp":12886538,"utc_timestamp":1585933683,"steamid_from":"***REDACTED***","text":"Test\n\nhttps://imgur.com/gallery/vtqrco9\n\nTest"}],"messagelast":50,"timestamp":12886538,"utc_timestamp":1585933683,"messagebase":49,"sectimeout":12,"error":"OK"}
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Connection closed internal
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:4294967295) Connection closed
[11:08:04 0AB4] [STEAM_1] Connection request to api.steampowered.com:443 (Flags 11)....
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310) Connecting to server api.steampowered.com:443....
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310) Connecting to ip 23.204.57.164:443 ....
[11:08:04 0AB4] [STEAM_1] (1184) Connected to api.steampowered.com:443
[11:08:04 0AB4] [STEAM_1] (1184 api.steampowered.com) Starting SSL negotiation
[11:08:04 0AB4] [STEAM_1] (1184 api.steampowered.com) SSL negotiation successful
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Data sent
POST /ISteamWebUserPresenceOAuth/Poll/v0001 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Miranda/0.95.12.22738 (x64)
Accept-Encoding: deflate, gzip
Host: api.steampowered.com
Connection: Keep-Alive
Proxy-Connection: Keep-Alive
Content-Length: 110
access_token=***REDACTED***&umqid=***REDACTED***&message=50&secidletime=0§imeout=30
#3 - Sending the following lines in a single message from Steam to Miranda: (This one does not display the link in Miranda)
Test
https://imgur.com/gallery/vtqrco9
Spoiler
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Data received
HTTP/1.1 200 OK
Content-Type: application/json; charset=UTF-8
Content-Length: 297
Expires: Fri, 03 Apr 2020 17:08:04 GMT
Date: Fri, 03 Apr 2020 17:08:04 GMT
Connection: close
{"pollid":0,"messages":[{"type":"saytext","timestamp":12886538,"utc_timestamp":1585933683,"steamid_from":"***REDACTED***","text":"Test\n\nhttps://imgur.com/gallery/vtqrco9\n\nTest"}],"messagelast":50,"timestamp":12886538,"utc_timestamp":1585933683,"messagebase":49,"sectimeout":12,"error":"OK"}
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Data received
{"pollid":0,"messages":[{"type":"saytext","timestamp":12886538,"utc_timestamp":1585933683,"steamid_from":"***REDACTED***","text":"Test\n\nhttps://imgur.com/gallery/vtqrco9\n\nTest"}],"messagelast":50,"timestamp":12886538,"utc_timestamp":1585933683,"messagebase":49,"sectimeout":12,"error":"OK"}
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Connection closed internal
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:4294967295) Connection closed
[11:08:04 0AB4] [STEAM_1] Connection request to api.steampowered.com:443 (Flags 11)....
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310) Connecting to server api.steampowered.com:443....
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310) Connecting to ip 23.204.57.164:443 ....
[11:08:04 0AB4] [STEAM_1] (1184) Connected to api.steampowered.com:443
[11:08:04 0AB4] [STEAM_1] (1184 api.steampowered.com) Starting SSL negotiation
[11:08:04 0AB4] [STEAM_1] (1184 api.steampowered.com) SSL negotiation successful
[11:08:04 0AB4] [STEAM_1] (0000000007AFC310:1184) Data sent
POST /ISteamWebUserPresenceOAuth/Poll/v0001 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
User-Agent: Miranda/0.95.12.22738 (x64)
Accept-Encoding: deflate, gzip
Host: api.steampowered.com
Connection: Keep-Alive
Proxy-Connection: Keep-Alive
Content-Length: 110
access_token=***REDACTED***&umqid=***REDACTED***&message=50&secidletime=0§imeout=30
Spoilers #2 and #3 are shown in the screenshot.