Fix redirect URI formatting in README after recent changes

README.md

@@ -89,7 +89,7 @@ Add the following to the `config.el` file:
 ```
 
 In order to get the client ID and client secret, you need to create a
-[Spotify app][app-list], specifying <http://localhost:8080/smudge-api-callback>
+[Spotify app][app-list], specifying <http://127.0.0.1:8080/smudge_api_callback>
 as the redirect URI (or whichever port you have specified via customize). The
 OAuth2 exchange is handled by `simple-httpd`. If you are not already using
 this package for something else, you should not need to customize this port.
@@ -188,9 +188,11 @@ a description:
 ![Creating a Spotify App 1/3](./img/spotify-app-01.png)
 
 After creating the new app, click the **Edit Settings**, scroll down a little bit,
-type <http://localhost:8080/smudge-api-callback> as the Redirect URI for the
+type <http://127.0.0.1:8080/smudge_api_callback> as the Redirect URI for the
 application, and click **Add**. Then, hit **Save**.
 
+**IMPORTANT**: After recent changes you must make sure the Redirect URI has underscores '_' and not hyphens '-'!
+
 ![Creating a Spotify App 2/3](./img/spotify-app-02.png)
 
 At this point, the client ID and the client secret are available, so set those values to

smudge-api.el

@@ -185,6 +185,7 @@ Replaces functionality from built-in OAuth lib to call smudge-specific
 function that runs a local httpd for code -> token exchange."
   (let ((inhibit-message t))
     (oauth2-request-access
+     auth-url
      token-url
      client-id
      client-secret