diff --git a/src/api-client.ts b/src/api-client.ts
index 96b0408..bbfa6a6 100644
--- a/src/api-client.ts
+++ b/src/api-client.ts
@@ -169,7 +169,7 @@ export class APIClient {
             targetUrl = new URL(url, vars.apiUrl)
           }
 
-          const isHerokuApi = ALLOWED_HEROKU_DOMAINS.some(domain => targetUrl.hostname.endsWith(`.${domain}`))
+          const isHerokuApi = ALLOWED_HEROKU_DOMAINS.some(domain => targetUrl.hostname.endsWith(`.${domain}`) || targetUrl.hostname === domain)
           const isLocalhost = LOCALHOST_DOMAINS.includes(targetUrl.hostname as (typeof LOCALHOST_DOMAINS)[number])
 
           if (isHerokuApi || isLocalhost) {
diff --git a/src/vars.ts b/src/vars.ts
index 628b286..b87cf7d 100644
--- a/src/vars.ts
+++ b/src/vars.ts
@@ -77,7 +77,7 @@ export class Vars {
     // Remove protocol if present
     const cleanHost = host.replace(/^https?:\/\//, '')
 
-    return ALLOWED_HEROKU_DOMAINS.some(domain => cleanHost.endsWith(`.${domain}`)) || LOCALHOST_DOMAINS.some(domain => cleanHost.includes(domain))
+    return ALLOWED_HEROKU_DOMAINS.some(domain => cleanHost.endsWith(`.${domain}`) || cleanHost === domain) || LOCALHOST_DOMAINS.some(domain => cleanHost.includes(domain))
   }
 }