I want to use HtmlUnit (v2.21) to get some search result pages from google. This requires me to click on "people also looked for" link when searching for a person (right side, see example link), which triggers some JavaScript and changes the content of the current page. But this gives me an JavaScript Wrapper Exception (see below).
Clickable example link: https://www.google.de/search?ie=UTF-8&safe=off&q=nicki+minaj
Simple TestCase with errors:
String url = "https://www.google.de/search?ie=UTF-8&safe=off&q=nicki+minaj";
WebClient client = new WebClient(BrowserVersion.BEST_SUPPORTED);
HtmlPage page = client.getPage(url);
HtmlElement link = page.getFirstByXPath("//a[#class='_Zjg']");
HtmlPage newPage = link.click(); //throws exception
this.storeResultFile(newPage.asXml(), "test");
client.close();
Result:
net.sourceforge.htmlunit.corejs.javascript.WrappedException: Wrapped java.lang.NullPointerException
at net.sourceforge.htmlunit.corejs.javascript.Context.throwAsScriptRuntimeEx(Context.java:2053)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:947)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.processPostponedActions(JavaScriptEngine.java:1012)
at com.gargoylesoftware.htmlunit.html.DomElement.click(DomElement.java:799)
at com.gargoylesoftware.htmlunit.html.DomElement.click(DomElement.java:742)
at com.gargoylesoftware.htmlunit.html.DomElement.click(DomElement.java:689)
I stored the xml of the "page" object and made sure that the XPath expression is valid and has results.
Anybody got any ideas?
Looks like the JavaScript-Engine (based on Rhino) is very easy to upset and quits on some script-issues, where other browsers are still able to run the script.
I dont know if there is a mistake in the scripts from google, but these two lines solved it for me:
JavaScriptEngine engine = client.getJavaScriptEngine();
engine.holdPosponedActions();
Nevertheless, when running multiple htmlunit-objects in multiple threads it is still possible to get accross this error. This is more a workaround than a solution.
I've the following code to add in userextensions.js file whenever I add the following piece of code it gives me following error
Failed to load user-extensions.js: Syntax Error: Unterminated String Literal
Selenium.prototype.doInsertCKEditor = function(locator,word)
{
this.doWaitForCondition("var x =
Selenium.browserbot.findElementOrNull('//td[#id=\"cke_contents_form
\"]');x != null;", "50000");
this.doRunScript("CKEDITOR.instances['"+locator+"'].setData('"+word
+"');");
the best way to remove this ever I found it to open your script in some javascript editor I did it in Adobe Dreamweaver and it pin pointed the line where actually the problem is and I resolved this
I am trying to print a PDF which is embedded in an object tag which is present in an Iframe.I am getting an error message saying 'undefined is not a function' with the below code in Chrome but it works perfectly fine in IE.
$('#iframeWindowDialog').contents().find('object[classid=clsid:CA8A9780-280D-11CF-A24D-444553540000]')[0].print()
Can anybody suggest a code which works fine in both Chrome and IE ?
I stumbled upon a similar problem, and solved this way:
Instead of:
var wf = window.frames["myframe"]
wf.print()
I did
var wf = window.frames["myframe"]
wf.contentWindow.print()
and that did the trick :-)
I'm trying to call the function showPage('3'); of this page, for use the page source code after. I tried to do with htmlUnit like so:
WebClient webClient = new WebClient();
webClient.waitForBackgroundJavaScriptStartingBefore(10000);
HtmlPage page = webClient.getPage("http://www.visittrentino.it/it/cosa_fare/eventi/risultati?minEventDate=09012014&maxEventDate=31012014&tp=searchForm.thismonth<p=gennaio");
String javaScriptCode = "showPage('3');";
ScriptResult result = page.executeJavaScript(javaScriptCode);
result.getJavaScriptResult();
System.out.println("result: "+ result);
But it's not working.
It prints out:
result: net.sourceforge.htmlunit.corejs.javascript.Undefined#a303147
and other 10000 warnings. What am I doing wrong? I need to change the page of this site for do some crawling on the source code. Is there another way (and maybe more easier) for calling jsp-function from Java code and then navigate in the source of the page?
Thank you for any help, have a nice day.
You print the ScriptResult object not the content of the page,change the SOP code to result.getNewPage()
When using Google Chrome, I receive the following error message:
Error:
Uncaught SyntaxError: Unexpected token <
It occurs directly after my doctype declaration at the top of my HTML page
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Any ideas what this JavaScript error message is? It only seems to occur with Google Chrome (works fine in Safari, Firfox and IE)
This problem occurred for me when I was using JQuery to load in HTML from an XMLHTTPRequest that was HTML, but the mime type was text/javascript.
So for example, I had some code such as:
jQuery.ajax({
data:'params=here',
success:function(request) {
jQuery('#country_list_container').html(request);
},
type:'get',
url:'/getHtml'
});
jQuery is sending a request to getHtml, and getHtml is returning a simple snippet of HTML, with a mime/type however of "text/javascript". The reason the getHtml action was returning text/javascript is because the accept header of the request from jQuery is:
"Accept:text/javascript, text/html, application/xml, text/xml, */*"
So, all I had to do was force a header of text/html and everything worked perfectly.
The parse error you are seeing is a result of Javascript trying to eval the content.
In my case it was caused by an eval() statement aborting. When I fixed the problem the error message disappeared.
At the present time (June 2010) Chrome Javascript has a buggy eval() statement. eval() will abort without issuing an error message if a variable in the eval() statement has been assigned the reserved word 'delete'. It took me almost a week to uncover this bug because eval() aborts without any warning or error message, and the abort has nasty side-effects.
I was using eval() to achieve this result: obj.delete = somevalue.
This code will cause an eval() abort:
var obj = new Object();
var x = 'delete';
var y = 2;
eval('obj.' + x + ' = y');
This code works:
var obj = new Object();
var x = 'delete';
var y = 2;
eval('obj[\'' + x + '\'] = y');
In summary, don't use eval() to construct obj.delete = somevalue. Use eval() to construct the equivalent statement obj["delete"] = somevalue.
Maybe the HTTP content type is not text/html or application/xhtml+xml?
I found this Google Groups question.
Some others are experiencing the problem but without resolution.
http://www.google.com/support/forum/p/Chrome/thread?tid=7e9f87870a37e401&hl=en
Try switching the order of your css and js declarations. Worked for me.
At the risk of dredging up an old thread (I figure its better to keep all the info in one place), Chrome is still throwing these errors it seems. I got the following while developing a site and tried all kinds of things with the page JS and PHP to get rid of it. The error I got was:
error in event handler for 'undefined': SyntaxError: Unexpected token ILLEGAL
chrome/EventBindings:183
Eventually while checking code validity in FireFox I stumbled across the answer as a warning that there was a '&' in some text that should be converted to '&' - once this was done the Chrome error went away.
Steve
If you are returning a response to an ajax request in JSON, make sure you use 'application/json' for the Content-Type.
If it's a Rails App check that the format.js is in the response_to block.
I had this problem when I was trying to set .innerHTML dynamically generated with php (it was generated multi-line).
Replacing new line characters by spaces solved the problem.
I also encountered this error in Chrome Dev Tools, and my cause was similar to Matthew O'Riordan's except it wasn't the Accept MIME-type but rather the broken AJAX URL.
I had rearranged my folder structure and forgot to update the URL; once I fixed the URL, the Dev Tools JS Error was gone.
Hope this helps! :)