/src/main/java/org/htmlunit/html/HtmlForm.java
&& StringUtils.isEmpty ( actionUrl ) ) { url = UrlUtils.getUrlWithNewRef ( url, null ) ;
&& UrlUtils.URL_ABOUT_BLANK != url) { url = UrlUtils.getUrlWithNewRef(url, null); } else if (HttpMethod.POST == method && browser.hasFeature(FORM_SUBMISSION_URL_WITHOUT_HASH) && UrlUtils.URL_ABOUT_BLANK != url <extra_id_0> } else if (anchor != null && UrlUtils.URL_ABOUT_BLANK != url) { url = UrlUtils.getUrlWithNewRef(url, anchor); } }