JavaScript v8 JIT and WebAssembly (WASM)
Table of Contents
JavaScript v8 JIT and WebAssembly (WASM)
JavaScript v8 JIT & WebAssembly (WASM) control
| Prisma Browser Desktop | Prisma Browser Extension | Prisma Browser for Mobile |
|---|---|---|
| Full support | No support | No support |
You can strengthen browser security by blocking JavaScript V8 JIT & WebAssembly
(WASM) to reduce the risk of exploitation.
- Block JavaScript v8 JIT to reduce the risk of exploitation and to
enable advanced mitigation techniques such as Control Flow Guard (CFG),
Control-flow Enforcement Technology (CET), and Arbitrary Code Guard (ACG).
Blocking JIT may impact overall browser performance.
- Block WebAssembly (WASM) to lower the attack surface for modern exploitation techniques.
Disabling the JavaScript V8 Just-In-Time (JIT) compiler helps reduce exploitation
risks and enables additional security mitigation techniques, including Control Flow
Guard (CFG), Control-flow Technology (CET), and Arbitrary Code Guard (ACG).
Blocking WASM may limit functionality in advanced web
applications.
Use this configuration if your security posture prioritizes reduces vulnerability
exposure over performance or feature compatibility.
- From Strata Cloud Manager, selectSelect JavaScript v8 JIT.Select one of the following options:
- Enable - Enable use of JavaScript v8 JIT and WebAssembly.
- Disable JavaScript advanced optimization - Disable use of JavaScript v8 JIT. You can optionally select specific domains to exclude.
- Disable JavaScript JIT, including WebAssembly- Disable the use of
JavaScript JIT and WebAssembly. You can optionally select specific
domains to exclude. To exclude specific applications, enter their domains into the exclusion list. Click here for more information regarding entering URLs.
Click Set.![]()
