In the switch case in InstallWebUnit[driver_], I suggest to change the code for windows to:

"Windows-x86-64", 
  If[
    Complement[Characters[dir],Join[CharacterRange["0", "z"], Characters@"-."]]=!={},
    SystemOpen[FileNameJoin[{ dir, "chromedriver.exe" }]],
    process = StartProcess[ $SystemShell ]; 
    WriteLine[ process, "start /b " <> FileNameJoin[{ dir, "chromedriver.exe" }] ]
  ]

Or else Chinese characters in dir would lead to initialization failure.

Whenever I try to open a webpage with login panel, WebUnit crashes.
Even if I open the webpage manually, after executing arbitrary webpage manipulation program, driver crashes.( Before I execute anything, http://localhost:9515/status returns proper result, however, after execution, which would fail, the localhost webpage becomes unavailable )
I checked this behavior on baidu.com(I'm in China, so Google is unavailable......)/my school bbs/my school course system all result in the crash of WebUnit. What's intriguing is that baidu.com use a pop-up window to display login panel, before I click to show this pop-up window, everything is fine, but after clicking, WebUnit crashes, however, URL of the webpage doesn't change in the progress.
How could this possibly happen and how could I fix this?
Thanks again!

I checked Google, when I open google's login page, WebUnit crashes as well.

How do you start chrome using StartExternalSession["WebDriver-Chrome"] with SessionOptions that will disable the message 'Chrome is bring controlled by automated test software". The basic issue is that the automated test window is not accepted as a login browser by certain financial websites. I would like a chrome window that does not use the argument "--enable-automation".

Edge Driver only works under corresponding Windows build. If the build number and Edge Driver's version is not exactly the same, driver would crash. Is it possible to create a function to check driver vapidity and download corresponding driver?

Today I found an issue where WebUnit would throw mysterious errors. After some digging, it turned out that the system running WebUnit did not have permissions to use the command line, so it could never launch the web driver.

In the code of InstallWebUnit[] there is the line Quiet[URLFetch[webDriverBaseURL<>"/status"]] that checks if the process is already running. Maybe this check should be performed again after launching the driver to check if it really did launch.

It would be great if I can write something like:

GetPageHTML[Id[*******]]
or
GetPageHTML[XPath[*******]]

Now I'll have to do StringCases[GetPageHTML[****],***] which is kind of redundant and of low efficiency.

Also, WebUnit crash sometimes when opening webpage, returning the following info:
"value" /. ImportString[$Failed, "JSON"], and don't work afterward even if I change webpage manually.
How can I fix this?

BTW: I LOVE WebUnit, It's so helpful when dealing with web stuffs, thanks a lot~

It would be great to add a function to import the webpage because some pages can be only accessed after logging in and one can't simply use standard Import function to read the page.
I think the most useful would be to get a source of current page.
Thank you in advance!

Is it possible for WebUnit to download images on the page?
Note that Fetching URL is not always an option, as sometimes image differs between calls even if the URLs are the same(E.G. verification code images).

I thought it should be:

QueryMethod[ wtId[s_String] ] ^:= s;
QueryMethod[ wtName[s_String] ] ^:= s;
QueryValue[ wtId[s_String] ] ^:= s;
QueryValue[ wtName[s_String] ] ^:= s;

instead of:

QueryMethod[ Id[s_String] ] ^:= s;
QueryMethod[ Name[s_String] ] ^:= s;
QueryValue[ Id[s_String] ] ^:= s;
QueryValue[ Name[s_String] ] ^:= s;

How to get cookies from a controlled explorer?

I tried to run some js but missed something important ones.

Then I found that means Http-Only cookies, which can't get from javascript.

So how can I catch them with the Mathematica?

I am able to navigate to a web page using the WebUnit package, however when I execute the function:

CaptureWebPage[]

it returns the error:

ImportString[{"message" ->
"unknown error: cannot get automation extension
from unknown error: page could not be found:
chrome-extension://aapnijgdinlhnhlmodcfapnahmbfebeb/generated
background_page.html
(Session info: chrome=57.0.2987.133)
(Driver info: chromedriver=2.25.426935
(820a95b0b81d33e42712f9198c215f703412e1a1),platform=Mac OS X 10.10.5
x86_64)"}, "Base64"]

If I have to supply an argument to CaptureWebPage[], what is the correct syntax and data type?
Picture of my test below.
Thanks!

I installed the new WebTools package, but now StartWebSession won't work......
Also when <<WebTools, a warning is generated which said:
Set::wrsym: Symbol $SupportedWebDrivers is Protected.

Am I installing the package in the wrong way?