Throw error only if the message is provided

Author: brichet

src/manager.ts

@@ -255,7 +255,8 @@ export namespace SecretsManager {
     if (isDisabled('jupyter-secrets-manager:manager')) {
       // If the secrets manager is disabled, we need to lock the manager, but not
       // throw an error, to let the plugin get activated anyway.
-      lock('Secret registry is disabled.', false);
+      console.warn('Secrets manager is disabled.');
+      lock();
     }
     if (isDisabled(id)) {
       lock(`Sign error: plugin ${id} is disabled.`);
@@ -295,12 +296,10 @@ namespace Private {
    *
    * @param message - the error message to throw.
    */
-  export function lock(message: string, throwError = true): void {
+  export function lock(message?: string): void {
     locked = true;
-    if (throwError) {
+    if (message) {
       throw new Error(message);
-    } else {
-      console.warn(message);
     }
   }