fix json validation validation

src/vs/workbench/api/common/jsonValidationExtensionPoint.ts

@@ -69,8 +69,8 @@ export class JSONValidationExtensionPoint {
 						} catch (e) {
 							collector.error(nls.localize('invalid.url.fileschema', "'configuration.jsonValidation.url' is an invalid relative URL: {0}", e.message));
 						}
-					} else if (!strings.startsWith(uri, 'http://') && !strings.startsWith(uri, 'https://')) {
-						collector.error(nls.localize('invalid.url.schema', "'configuration.jsonValidation.url' must start with 'http:', 'https:' or './' to reference schemas located in the extension"));
+					} else if (!/^[^:/?#]+:\/\//.test(uri)) {
+						collector.error(nls.localize('invalid.url.schema', "'configuration.jsonValidation.url' must be an absolute URL or start with './'  to reference schemas located in the extension."));
 						return;
 					}
 				});