Improve error trapping, actually make it work

webif/lib/ts.class

@@ -862,6 +862,7 @@ ts method getkey {mode} {
 			if {[string length $key] == 32} {
 				ladd keys $key
 			}
+		} on error {} {
 		} finally {
 			catch {$fd close}
 		}
@@ -878,6 +879,7 @@ ts method getkey {mode} {
 			foreach key [split [$fd read -nonewline] "\n"] {
 				ladd keys $key
 			}
+		} on error {} {
 		} finally {
 			catch {$fd close}
 		}