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-rw-r--r--cli/js/compiler.ts6
1 files changed, 6 insertions, 0 deletions
diff --git a/cli/js/compiler.ts b/cli/js/compiler.ts
index 1dddd984c..914a0baf0 100644
--- a/cli/js/compiler.ts
+++ b/cli/js/compiler.ts
@@ -400,6 +400,12 @@ function bootstrapWasmCompilerRuntime(): void {
globalThis.onmessage = wasmCompilerOnMessage;
}
+// Removes the `__proto__` for security reasons. This intentionally makes
+// Deno non compliant with ECMA-262 Annex B.2.2.1
+//
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+delete (Object.prototype as any).__proto__;
+
Object.defineProperties(globalThis, {
bootstrapWasmCompilerRuntime: {
value: bootstrapWasmCompilerRuntime,