Assert support for wasm and getRandomValues

Author: HACKERALERT

index.html

@@ -102,6 +102,15 @@
 		<input type="submit" id="work" style="display:none;">
 		<p id="status" class="disabled" style="margin:0;font-size:16px;">Ready.</p>
 	</div>
+	<script>
+		(() => {
+			"use strict";
+
+			if (!WebAssembly || !WebAssembly.instantiateStreaming || !window.crypto || !window.crypto.getRandomValues) {
+				document.body.innerHTML = "<h1>Unsupported browser!</h1>";
+			}
+		})();
+	</script>
 	<script>
 		(()=>{
 			"use strict";