Also facing the same issue. Did updated App Bridge to 3.x + CSP header correct + used apiKey & host parameter at initialization + APpBridge script for WebVitals. So did all the steps required on that referred page but still the same issue.
I got it resolved, just make sure that you are up to date with the requirements, and reach out to Shopify to remove that banner. The banner is supposed to be removed automatically, but it didn’t, even a few days after we made the updates
I got it resolved after discussing with chat support. but make sure you have followed 3 mandatory steps of app bridge and CSP.
In shopify partner dashboard >> support >> choose “shopify App Store or Theme - Topic” tell them your banner issue, they will ask have you followed the steps. if you say yes they will inform dev team to review and in few hours it will resolve.
Yes i am using CDN version from latest documentation. don’t follow anything else. also add meta tag with api_Key
to verify that app bridge was initialized in browser developer console > choose Iframe and run command > “shopify.toast.show(“Hello”);”
If app bridge is initialized properly it will show a toast message.