Java Applets probably would've snuffed out WASM if it was added into a browser by default (instead of an extension). However, they were pretty insecure and cau

Java Applets probably would've snuffed out WASM if it was added into a browser by default (instead of an extension). However, they were pretty insecure and caused a ton of problems for the browser [1] and I'm guessing Oracle had no interest in providing free work in a secure solution. So they got eliminated. [1]: https://blog.chromium.org/2013/09/saying-goodbye-to-our-old-friend-npapi.html https://blog.chromium.org/2013/09/saying-goodbye-to-our-old-...