[Htmlunit-user] HtmlPage returning form instead of content

[Arya F. <ary...@gm...>]

I'm using the following code to submit a form

HtmlForm form = page.getForms().get(0);
form.getInputByName("file0").setValueAttribute("1.jpg");
HtmlPage page2 = form.getInputByValue("Submit").click();

This "sometimes" returns the server's response, but sometimes returns the
form itself when I print page2's text or xml.

Am I doing something wrong here?