diff --git a/document/js-api/index.bs b/document/js-api/index.bs
index 3f5803815e..9dc8a7a84c 100644
--- a/document/js-api/index.bs
+++ b/document/js-api/index.bs
@@ -372,11 +372,11 @@ dictionary WebAssemblyCompileOptions {
 
 [Exposed=*]
 namespace WebAssembly {
-    boolean validate(BufferSource bytes, optional WebAssemblyCompileOptions options = {});
-    Promise<Module> compile(BufferSource bytes, optional WebAssemblyCompileOptions options = {});
+    boolean validate([AllowResizable] AllowSharedBufferSource bytes, optional WebAssemblyCompileOptions options = {});
+    Promise<Module> compile([AllowResizable] AllowSharedBufferSource bytes, optional WebAssemblyCompileOptions options = {});
 
     Promise<WebAssemblyInstantiatedSource> instantiate(
-        BufferSource bytes, optional object importObject, optional WebAssemblyCompileOptions options = {});
+        [AllowResizable] AllowSharedBufferSource bytes, optional object importObject, optional WebAssemblyCompileOptions options = {});
 
     Promise<Instance> instantiate(
         Module moduleObject, optional object importObject);
@@ -704,7 +704,7 @@ dictionary ModuleImportDescriptor {
 
 [LegacyNamespace=WebAssembly, Exposed=*]
 interface Module {
-  constructor(BufferSource bytes, optional WebAssemblyCompileOptions options = {});
+  constructor([AllowResizable] AllowSharedBufferSource bytes, optional WebAssemblyCompileOptions options = {});
   static sequence<ModuleExportDescriptor> exports(Module moduleObject);
   static sequence<ModuleImportDescriptor> imports(Module moduleObject);
   static sequence<ArrayBuffer> customSections(Module moduleObject, DOMString sectionName);
diff --git a/test/js-api/constructor/compile.any.js b/test/js-api/constructor/compile.any.js
index e94ce11717..9c83ddcfd3 100644
--- a/test/js-api/constructor/compile.any.js
+++ b/test/js-api/constructor/compile.any.js
@@ -7,9 +7,42 @@ function assert_Module(module) {
   assert_true(Object.isExtensible(module), "Extensibility");
 }
 
+function copyToSharedBuffer(buffer) {
+  const sab = new SharedArrayBuffer(buffer.byteLength);
+  new Uint8Array(sab).set(buffer);
+  return new Uint8Array(sab);
+}
+
+function copyToResizableBuffer(buffer) {
+  const rab = new ArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(rab).set(buffer);
+  return new Uint8Array(rab);
+}
+
+function copyToGrowableSharedBuffer(buffer) {
+  const gsab = new SharedArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(gsab).set(buffer);
+  return new Uint8Array(gsab);
+}
+
 let emptyModuleBinary;
+let emptyModuleSharedBuffer;
+let emptyModuleResizableBuffer;
+let emptyModuleGrowableSharedBuffer;
+let invalidModuleBinary;
+let invalidModuleSharedBuffer;
+let invalidModuleResizableBuffer;
+let invalidModuleGrowableSharedBuffer;
 setup(() => {
   emptyModuleBinary = new WasmModuleBuilder().toBuffer();
+  emptyModuleSharedBuffer = copyToSharedBuffer(emptyModuleBinary);
+  emptyModuleResizableBuffer = copyToResizableBuffer(emptyModuleBinary);
+  emptyModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(emptyModuleBinary);
+
+  invalidModuleBinary = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
+  invalidModuleSharedBuffer = copyToSharedBuffer(invalidModuleBinary);
+  invalidModuleResizableBuffer = copyToResizableBuffer(invalidModuleBinary);
+  invalidModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(invalidModuleBinary);
 });
 
 promise_test(t => {
@@ -64,8 +97,7 @@ promise_test(t => {
 }, "Empty buffer");
 
 promise_test(t => {
-  const buffer = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
-  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.compile(buffer));
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.compile(invalidModuleBinary));
 }, "Invalid code");
 
 promise_test(() => {
@@ -83,3 +115,27 @@ promise_test(() => {
   buffer[0] = 1;
   return promise.then(assert_Module);
 }, "Changing the buffer");
+
+promise_test(() => {
+  return WebAssembly.compile(emptyModuleSharedBuffer).then(assert_Module);
+}, "SharedArrayBuffer-backed view");
+
+promise_test(t => {
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.compile(invalidModuleSharedBuffer));
+}, "Invalid module in SharedArrayBuffer");
+
+promise_test(() => {
+  return WebAssembly.compile(emptyModuleResizableBuffer).then(assert_Module);
+}, "Resizable ArrayBuffer-backed view");
+
+promise_test(t => {
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.compile(invalidModuleResizableBuffer));
+}, "Invalid module in resizable ArrayBuffer");
+
+promise_test(() => {
+  return WebAssembly.compile(emptyModuleGrowableSharedBuffer).then(assert_Module);
+}, "Growable SharedArrayBuffer-backed view");
+
+promise_test(t => {
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.compile(invalidModuleGrowableSharedBuffer));
+}, "Invalid module in growable SharedArrayBuffer");
diff --git a/test/js-api/constructor/instantiate.any.js b/test/js-api/constructor/instantiate.any.js
index 8152f3a56f..30f83efefa 100644
--- a/test/js-api/constructor/instantiate.any.js
+++ b/test/js-api/constructor/instantiate.any.js
@@ -3,9 +3,42 @@
 // META: script=/wasm/jsapi/assertions.js
 // META: script=/wasm/jsapi/instanceTestFactory.js
 
+function copyToSharedBuffer(buffer) {
+  const sab = new SharedArrayBuffer(buffer.byteLength);
+  new Uint8Array(sab).set(buffer);
+  return new Uint8Array(sab);
+}
+
+function copyToResizableBuffer(buffer) {
+  const rab = new ArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(rab).set(buffer);
+  return new Uint8Array(rab);
+}
+
+function copyToGrowableSharedBuffer(buffer) {
+  const gsab = new SharedArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(gsab).set(buffer);
+  return new Uint8Array(gsab);
+}
+
 let emptyModuleBinary;
+let emptyModuleSharedBuffer;
+let emptyModuleResizableBuffer;
+let emptyModuleGrowableSharedBuffer;
+let invalidModuleBinary;
+let invalidModuleSharedBuffer;
+let invalidModuleResizableBuffer;
+let invalidModuleGrowableSharedBuffer;
 setup(() => {
   emptyModuleBinary = new WasmModuleBuilder().toBuffer();
+  emptyModuleSharedBuffer = copyToSharedBuffer(emptyModuleBinary);
+  emptyModuleResizableBuffer = copyToResizableBuffer(emptyModuleBinary);
+  emptyModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(emptyModuleBinary);
+
+  invalidModuleBinary = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
+  invalidModuleSharedBuffer = copyToSharedBuffer(invalidModuleBinary);
+  invalidModuleResizableBuffer = copyToResizableBuffer(invalidModuleBinary);
+  invalidModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(invalidModuleBinary);
 });
 
 promise_test(t => {
@@ -139,8 +172,7 @@ promise_test(t => {
 }, "Empty buffer");
 
 promise_test(t => {
-  const buffer = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
-  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.instantiate(buffer));
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.instantiate(invalidModuleBinary));
 }, "Invalid code");
 
 promise_test(() => {
@@ -150,3 +182,27 @@ promise_test(() => {
   buffer[0] = 1;
   return promise.then(assert_WebAssemblyInstantiatedSource);
 }, "Changing the buffer");
+
+promise_test(() => {
+  return WebAssembly.instantiate(emptyModuleSharedBuffer).then(assert_WebAssemblyInstantiatedSource);
+}, "SharedArrayBuffer-backed view");
+
+promise_test(t => {
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.instantiate(invalidModuleSharedBuffer));
+}, "Invalid module in SharedArrayBuffer");
+
+promise_test(() => {
+  return WebAssembly.instantiate(emptyModuleResizableBuffer).then(assert_WebAssemblyInstantiatedSource);
+}, "Resizable ArrayBuffer-backed view");
+
+promise_test(t => {
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.instantiate(invalidModuleResizableBuffer));
+}, "Invalid module in resizable ArrayBuffer");
+
+promise_test(() => {
+  return WebAssembly.instantiate(emptyModuleGrowableSharedBuffer).then(assert_WebAssemblyInstantiatedSource);
+}, "Growable SharedArrayBuffer-backed view");
+
+promise_test(t => {
+  return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly.instantiate(invalidModuleGrowableSharedBuffer));
+}, "Invalid module in growable SharedArrayBuffer");
diff --git a/test/js-api/constructor/validate.any.js b/test/js-api/constructor/validate.any.js
index 8b4f4582ab..005e13e383 100644
--- a/test/js-api/constructor/validate.any.js
+++ b/test/js-api/constructor/validate.any.js
@@ -1,9 +1,42 @@
 // META: global=window,dedicatedworker,jsshell
 // META: script=/wasm/jsapi/wasm-module-builder.js
 
+function copyToSharedBuffer(buffer) {
+  const sab = new SharedArrayBuffer(buffer.byteLength);
+  new Uint8Array(sab).set(buffer);
+  return new Uint8Array(sab);
+}
+
+function copyToResizableBuffer(buffer) {
+  const rab = new ArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(rab).set(buffer);
+  return new Uint8Array(rab);
+}
+
+function copyToGrowableSharedBuffer(buffer) {
+  const gsab = new SharedArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(gsab).set(buffer);
+  return new Uint8Array(gsab);
+}
+
 let emptyModuleBinary;
+let emptyModuleSharedBuffer;
+let emptyModuleResizableBuffer;
+let emptyModuleGrowableSharedBuffer;
+let invalidModuleBinary;
+let invalidModuleSharedBuffer;
+let invalidModuleResizableBuffer;
+let invalidModuleGrowableSharedBuffer;
 setup(() => {
   emptyModuleBinary = new WasmModuleBuilder().toBuffer();
+  emptyModuleSharedBuffer = copyToSharedBuffer(emptyModuleBinary);
+  emptyModuleResizableBuffer = copyToResizableBuffer(emptyModuleBinary);
+  emptyModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(emptyModuleBinary);
+
+  invalidModuleBinary = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
+  invalidModuleSharedBuffer = copyToSharedBuffer(invalidModuleBinary);
+  invalidModuleResizableBuffer = copyToResizableBuffer(invalidModuleBinary);
+  invalidModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(invalidModuleBinary);
 });
 
 test(() => {
@@ -97,3 +130,27 @@ for (const [module, expected] of modules) {
 test(() => {
   assert_true(WebAssembly.validate(emptyModuleBinary, {}));
 }, "Stray argument");
+
+test(() => {
+  assert_true(WebAssembly.validate(emptyModuleSharedBuffer));
+}, "SharedArrayBuffer-backed view");
+
+test(() => {
+  assert_false(WebAssembly.validate(invalidModuleSharedBuffer));
+}, "Invalid module in SharedArrayBuffer");
+
+test(() => {
+  assert_true(WebAssembly.validate(emptyModuleResizableBuffer));
+}, "Resizable ArrayBuffer-backed view");
+
+test(() => {
+  assert_false(WebAssembly.validate(invalidModuleResizableBuffer));
+}, "Invalid module in resizable ArrayBuffer");
+
+test(() => {
+  assert_true(WebAssembly.validate(emptyModuleGrowableSharedBuffer));
+}, "Growable SharedArrayBuffer-backed view");
+
+test(() => {
+  assert_false(WebAssembly.validate(invalidModuleGrowableSharedBuffer));
+}, "Invalid module in growable SharedArrayBuffer");
diff --git a/test/js-api/module/constructor.any.js b/test/js-api/module/constructor.any.js
index 9978f7e6ac..6e4247a230 100644
--- a/test/js-api/module/constructor.any.js
+++ b/test/js-api/module/constructor.any.js
@@ -2,9 +2,42 @@
 // META: script=/wasm/jsapi/wasm-module-builder.js
 // META: script=/wasm/jsapi/assertions.js
 
+function copyToSharedBuffer(buffer) {
+  const sab = new SharedArrayBuffer(buffer.byteLength);
+  new Uint8Array(sab).set(buffer);
+  return new Uint8Array(sab);
+}
+
+function copyToResizableBuffer(buffer) {
+  const rab = new ArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(rab).set(buffer);
+  return new Uint8Array(rab);
+}
+
+function copyToGrowableSharedBuffer(buffer) {
+  const gsab = new SharedArrayBuffer(buffer.byteLength, { maxByteLength: buffer.byteLength * 2 });
+  new Uint8Array(gsab).set(buffer);
+  return new Uint8Array(gsab);
+}
+
 let emptyModuleBinary;
+let emptyModuleSharedBuffer;
+let emptyModuleResizableBuffer;
+let emptyModuleGrowableSharedBuffer;
+let invalidModuleBinary;
+let invalidModuleSharedBuffer;
+let invalidModuleResizableBuffer;
+let invalidModuleGrowableSharedBuffer;
 setup(() => {
   emptyModuleBinary = new WasmModuleBuilder().toBuffer();
+  emptyModuleSharedBuffer = copyToSharedBuffer(emptyModuleBinary);
+  emptyModuleResizableBuffer = copyToResizableBuffer(emptyModuleBinary);
+  emptyModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(emptyModuleBinary);
+
+  invalidModuleBinary = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
+  invalidModuleSharedBuffer = copyToSharedBuffer(invalidModuleBinary);
+  invalidModuleResizableBuffer = copyToResizableBuffer(invalidModuleBinary);
+  invalidModuleGrowableSharedBuffer = copyToGrowableSharedBuffer(invalidModuleBinary);
 });
 
 test(() => {
@@ -49,8 +82,7 @@ test(() => {
 }, "Empty buffer");
 
 test(() => {
-  const buffer = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
-  assert_throws_js(WebAssembly.CompileError, () => new WebAssembly.Module(buffer));
+  assert_throws_js(WebAssembly.CompileError, () => new WebAssembly.Module(invalidModuleBinary));
 }, "Invalid code");
 
 test(() => {
@@ -67,3 +99,30 @@ test(() => {
   const module = new WebAssembly.Module(emptyModuleBinary, {});
   assert_equals(Object.getPrototypeOf(module), WebAssembly.Module.prototype);
 }, "Stray argument");
+
+test(() => {
+  const module = new WebAssembly.Module(emptyModuleSharedBuffer);
+  assert_true(module instanceof WebAssembly.Module);
+}, "SharedArrayBuffer-backed view");
+
+test(() => {
+  assert_throws_js(WebAssembly.CompileError, () => new WebAssembly.Module(invalidModuleSharedBuffer));
+}, "Invalid module in SharedArrayBuffer");
+
+test(() => {
+  const module = new WebAssembly.Module(emptyModuleResizableBuffer);
+  assert_true(module instanceof WebAssembly.Module);
+}, "Resizable ArrayBuffer-backed view");
+
+test(() => {
+  assert_throws_js(WebAssembly.CompileError, () => new WebAssembly.Module(invalidModuleResizableBuffer));
+}, "Invalid module in resizable ArrayBuffer");
+
+test(() => {
+  const module = new WebAssembly.Module(emptyModuleGrowableSharedBuffer);
+  assert_true(module instanceof WebAssembly.Module);
+}, "Growable SharedArrayBuffer-backed view");
+
+test(() => {
+  assert_throws_js(WebAssembly.CompileError, () => new WebAssembly.Module(invalidModuleGrowableSharedBuffer));
+}, "Invalid module in growable SharedArrayBuffer");