this app tried to access sensitive info in your google account. to keep your account safe, google blocked this access about md2googleslides

[ejc3]

https://stackoverflow.com/a/72117571/13299383 has a solution.

You'll also have to make this change:

diff --git a/src/auth.ts b/src/auth.ts
index 0e4fa0e..57f01d7 100644
--- a/src/auth.ts
+++ b/src/auth.ts
@@ -52,7 +52,7 @@ export interface AuthOptions {
  *   @returns {Promise.<String>} Promise yielding the authorization code
  */
 export default class UserAuthorizer {
-  private redirectUrl = 'urn:ietf:wg:oauth:2.0:oob';
+  private redirectUrl = 'http://localhost';
   private db: lowdb.LowdbSync<Credentials>;
   private clientId: string;
   private clientSecret: string;