Not able to setvalue for the text field which has multiple layer(i.e. HTML5 page)

[andydavies]

You can do a similar thing for that too e.g.

execAndWait document.getElementsByClassName("button-submit")[0].click();

obviously you'll need to adjust the index if there's more than one element with that class

I tend to write WPT scripts by testing the DOM code from a browser's dev tools console and then use execAndWait in WPT