Start a sub-thread task to generate the js code cache of the current template.
bytecodeSourceUrl: The url of the current template.useV8: Whether to generate V8 Code Cache, otherwise generate QuickJS Code Cache.bytecodeSourceUrl: The source url of the template.bytecodeSourceUrl: The url of the current template.useV8: Whether to generate V8 Code Cache, otherwise generate QuickJS Code Cache.LCD tables only load in the browser