Set up a basic "front-end" for the webassembly module to be tested locally from a data folder (I use python -m http.server). The WebAssembly application is now responsible for all setup/rendering through the WebGL2 context.

data/globals.js

@@ -0,0 +1,14 @@
+
+export const WASM_MEMORY_PAGE_SIZE = (64 * 1024); //64kB or 65,536b
+export const WASM_MEMORY_MAX_NUM_PAGES = (64 * 1024) //65,536 pages * 64 kB/page = 4GB
+export const WASM_MEMORY_MAX_SIZE = (WASM_MEMORY_MAX_NUM_PAGES * WASM_MEMORY_PAGE_SIZE)
+
+export var appGlobals =
+{
+	heapBase: 0,
+	canvas: null,
+	glContext: null,
+	memDataView: null,
+	wasmModule: null,
+	textDecoder: null,
+};