Beta4.3.79 Error: Failed to receive data

Beginner Questions
#1 
There was an error checking for updates to the A* Pathfinding Project
The error might disappear if you switch build target from Webplayer to Standalone because of the webplayer security emulation
Error: Failed to receive data
UnityEngine.Debug:LogWarning (object)
Pathfinding.AstarUpdateChecker:CheckForUpdates () (at ./Library/PackageCache/com.arongranberg.astar@4.3.79/Editor/AstarUpdateChecker.cs:164)
Pathfinding.AstarUpdateChecker:UpdateCheckLoop () (at ./Library/PackageCache/com.arongranberg.astar@4.3.79/Editor/AstarUpdateChecker.cs:151)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions () (at /Volumes/jenkins1/sharedspace/ra_2022.3/Editor/Mono/EditorApplication.cs:362)
#2

what’s the Webplayer? I’m running my game on unity play mode.

#3

This might be a Unity bug, or it could be some security emulation for the webplayer platform. I have never seen it before.
In any case, this is only for the A* Pathfinding Project’s update check, so ignoring it is completely safe.