[MM-11287] Add support for plus sign and period/dot in custom URL schemes (#9155) (#10852)

model/config_test.go

@@ -509,7 +509,7 @@ func TestDisplaySettingsIsValidCustomUrlSchemes(t *testing.T) {
 		{
 			name:  "containing period",
 			value: []string{"iris.beep"},
-			valid: false, // should technically be true, but client doesn't support it
+			valid: true,
 		},
 		{
 			name:  "containing hyphen",
@@ -519,7 +519,7 @@ func TestDisplaySettingsIsValidCustomUrlSchemes(t *testing.T) {
 		{
 			name:  "containing plus",
 			value: []string{"coap+tcp", "coap+ws"},
-			valid: false, // should technically be true, but client doesn't support it
+			valid: true,
 		},
 		{
 			name:  "starting with number",