Catch SSL shutdown errors when closing clients

src/routes/router_utils.nim

@@ -2,6 +2,8 @@ import strutils, sequtils, asyncdispatch, httpclient
 import ../utils, ../prefs
 export utils, prefs
 
+from net import SslError
+
 template cookiePrefs*(): untyped {.dirty.} =
   getPrefs(request.cookies.getOrDefault("preferences"), cfg)
 
@@ -14,8 +16,12 @@ template refPath*(): untyped {.dirty.} =
 proc getNames*(name: string): seq[string] =
   name.strip(chars={'/'}).split(",").filterIt(it.len > 0)
 
+proc safeClose*(client: AsyncHttpClient) =
+  try: client.close()
+  except SslError: discard
+
 proc safeFetch*(url: string): Future[string] {.async.} =
   let client = newAsyncHttpClient()
   try: result = await client.getContent(url)
   except: discard
-  client.close()
+  client.safeClose()