Attempt to fix blank chat / chat not loading (#21868)

if this works im going to cry
if it doesn't work i am also going to cry

duality of man

code/modules/tgui_panel/telemetry.dm

@@ -0,0 +1,69 @@
+/*!
+ * Copyright (c) 2020 Aleksej Komarov
+ * SPDX-License-Identifier: MIT
+ */
+
+/**
+ * Maximum number of connection records allowed to analyze.
+ * Should match the value set in the browser.
+ */
+#define TGUI_TELEMETRY_MAX_CONNECTIONS 5
+
+/**
+ * Maximum time allocated for sending a telemetry packet.
+ */
+#define TGUI_TELEMETRY_RESPONSE_WINDOW (30 SECONDS)
+
+/// Time of telemetry request
+/datum/tgui_panel/var/telemetry_requested_at
+/// Time of telemetry analysis completion
+/datum/tgui_panel/var/telemetry_analyzed_at
+/// List of previous client connections
+/datum/tgui_panel/var/list/telemetry_connections
+
+/**
+ * private
+ *
+ * Requests some telemetry from the client.
+ */
+/datum/tgui_panel/proc/request_telemetry()
+	telemetry_requested_at = world.time
+	telemetry_analyzed_at = null
+	window.send_message("telemetry/request", list(
+		"limits" = list(
+			"connections" = TGUI_TELEMETRY_MAX_CONNECTIONS,
+		),
+	))
+
+/**
+ * private
+ *
+ * Analyzes a telemetry packet.
+ *
+ * Does nothing except kick people who try to send a billion requests.
+ */
+/datum/tgui_panel/proc/analyze_telemetry(payload)
+	if(world.time > telemetry_requested_at + TGUI_TELEMETRY_RESPONSE_WINDOW)
+		message_admins("[key_name(client)] sent telemetry outside of the allocated time window.")
+		return
+	if(telemetry_analyzed_at)
+		message_admins("[key_name(client)] sent telemetry more than once.")
+		return
+	telemetry_analyzed_at = world.time
+	if(!payload)
+		return
+	telemetry_connections = payload["connections"]
+	var/len = length(telemetry_connections)
+	if(len == 0)
+		return
+	if(len > TGUI_TELEMETRY_MAX_CONNECTIONS)
+		message_admins("[key_name(client)] was kicked for sending a huge telemetry payload")
+		qdel(client)
+		return
+
+	var/ckey = client?.ckey
+	if (!ckey)
+		return
+
+#undef TGUI_TELEMETRY_MAX_CONNECTIONS
+#undef TGUI_TELEMETRY_RESPONSE_WINDOW

code/modules/tgui_panel/tgui_panel.dm

@@ -51,7 +51,9 @@
 	window.send_asset(get_asset_datum(/datum/asset/simple/namespaced/tgfont))
 	window.send_asset(get_asset_datum(/datum/asset/spritesheet/chat))
 	// Other setup
+	request_telemetry()
 	addtimer(CALLBACK(src, PROC_REF(on_initialize_timed_out)), 5 SECONDS)
+	window.send_message("testTelemetryCommand")
 
 /**
  * private