Relying on a deprecated plug-in is a technical debt. If you plan your exit, here are three migration paths:
| Issue | Description | |-------|-------------| | | Only fully supported in Chrome. Other browsers required plug-in installation. | | Security surface | The validator and PPAPI were complex, leading to potential exploits. | | Developer complexity | Required separate build toolchains and knowledge of native memory management. | | Mobile incompatibility | Never worked on iOS (due to App Store restrictions) or Android (partially). | | Maintenance burden | Google had to maintain architecture-specific validators (x86, ARM, etc.). | nacl-web-plug-in
Applications executed at roughly 80% to 90% of the speed of a standalone desktop application, vastly outperforming JavaScript at the time. Relying on a deprecated plug-in is a technical debt
: While Chrome originally pioneered NaCl, newer versions of Edge and Firefox may not support the H.265 encoding often used with it, requiring a manual "Enable" click in a pop-up window. | | Security surface | The validator and
The Rise and Fall of the NaCl Web Plug-in: Google’s Quest for Native Web Performance
: The plug-in creates a secure sandbox—a restricted memory space where system calls are filtered. Unlike traditional plug-ins (Java, Flash), NaCl uses a validator to ensure code cannot execute dangerous instructions.