1. Weibo web app authorization error, code: 21322, message: redirect address mismatch. See Figure 1.

2. Checked the OAuth 2.0 authorization settings. The authorization callback page is auth-channelpub.chinamcloud.com, which is not included in the secure domains. See Figure 2.

3. Added the domain chinamcloud.com to the bound secure domains. The Weibo web app authorization no longer reported errors. This confirms that as long as the domain of the authorization callback page is a subdomain of a configured secure domain, it will pass validation. See Figure 3.

