Many desperate webmasters look for "hacks" to re-enable Flash. We strongly advise against this. Here is why:
To restore playback for your listeners, you must replace outdated players with HTML5 audio tags or modern widgets. Shoutcast streams on non-standard port would no longer play
import parseIcyResponse from '@music-metadata/icy';
The fix for Shoutcast Flash player issues is no longer a technical "patch" but a complete transition to modern technologies. Adobe officially on December 31, 2020, and began blocking content from running in the player in January 2021.
For those who remember the sudden outage of SHOUTcast streams in browsers, the issue was eventually resolved. The breakthrough came from a deep dive into the browser’s source code. A developer investigating the problem discovered that the text/plain blocking policy was the primary culprit. After diagnosing the root cause, the developer submitted a patch to the Mozilla project that explicitly taught Firefox to treat the ICY protocol exactly like HTTP/1.0.
Shoutcast Flash Player (January 2017 Update) - Internet Radio
Modern browsers enforce strict security policies that block "mixed content"—a secure HTTPS webpage attempting to load insecure HTTP resources. If your website uses HTTPS (as most do today), an unencrypted SHOUTcast stream will be blocked outright, and users will see only a silent player. This issue commonly manifests as a working stream in VLC media player but silence in the browser.