[🐛 Bug]: Internet Explorer driver doesn't accept POST /session/{sessionid}/print

[nwatab]

What happened?

I'm trying to convert XML and XSLT files into a PDF via Internet Explorer in C#. The fileis shown in IE without any problem, however, when I called driver.Print(newPrintOptions());, I came across the error shown below.

System.NotImplementedException: 'Command not found: POST /session/e809cfda-0282-4339-ab82-efd34881e4fc/print'

Because a driver gets timed out to load remote page (as there's no protected mode in Windows 11, i can't configure properly), I can't confirm this error is thrown even when browsing a remote page.

The environment is

• Selenium.WebDriver == 4.7.0
• Selenium.WebDriver.IEDriver== 4.7.0
• .NET 6.0
• Windows 11 Home Edition

How can we reproduce the issue?

var driver = new InternetExplorerDriver();
driver.Url = "file:\\\\\\C:\\path\\to\\file.xml";
PrintDocument printDocument = driver.Print(new PrintOptions());  // throws an error

Relevant log output

System.NotImplementedException
  HResult=0x80004001
  Message=Command not found: POST /session/e809cfda-0282-4339-ab82-efd34881e4fc/print
  Source=WebDriver
  stack trace:
   at OpenQA.Selenium.WebDriver.UnpackAndThrowOnError(Response errorResponse, String commandToExecute)
   at OpenQA.Selenium.WebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.WebDriver.Print(PrintOptions printOptions)
   at XML2PDF.MainWindow..ctor() (C:\Users\MyName\source\repos\XML2PDF\XML2PDF\MainWindow.xaml.cs):line 58
   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean wrapExceptions)

Operating System

Microsoft windows 11 Home Insider Preview (10.0.25281 Build 25281)

Selenium version

C# 4.7.0

What are the browser(s) and version(s) where you see this issue?

Visual Studio 2022's debug mode. Microsoft Edge version109.0.1518.61 (official) (64bit) is called from Internet Explorer driver

What are the browser driver(s) and version(s) where you see this issue?

Both of Internet Explorer 32bit 4.7.0 and 64bit 4.7.0

Are you using Selenium Grid?

No, I don't use Selenium Grid.

[github-actions[bot]]

@nwatab, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[diemol]

This is not supported by IEDriver. I believe it is only supported in Chrome and Firefox.

[nwatab]

Thanks. then why driver has Print method... Edit: Print method https://github.com/SeleniumHQ/selenium/blob/1d723de63c8fdf16533f3bfed7ead17169776542/dotnet/src/webdriver/WebDriver.cs#L364-L369

[diemol]

Good point, we should check that.

[titusfortner]

@nwatab there are registry settings you can adjust to set protected mode for Edge in IE Mode, I discussed them here — https://titusfortner.com/2022/09/28/edge-ie-mode.html

Let us know if that fixes your issue.

[nwatab]

@titusfortner thanks for the article. Looks great. I'm not sure if it affects POST /print endpoints, but I'll give it a try. If I distribute my app to clients, should they also configure registry settings?

[titusfortner]

If they need to run Selenium with Edge in IE Mode and end up switching zones, then yes, they'll need to adjust registry settings as well.

Yeah, I don't know if it'll fix print endpoint, I just saw your reference to it, and if that part isn't working, other things won't work.

[github-actions[bot]]

This issue is looking for contributors.

Please comment below or reach out to us through our IRC/Slack/Matrix channels if you are interested.

[titusfortner]

So, this is a newer feature defined in w3c that IE Driver never implemented — https://w3c.github.io/webdriver/#print

I'm not sure how hard it is to add to our IE driver code, but none of the active contributors are C++ experts and so we are unlikely to prioritize this.

We'd welcome anyone interested in helping out to give it a shot to implement it. Thanks.

[github-actions[bot]]

This issue is stale because it has been open 280 days with no activity. Remove stale label or comment or this will be closed in 14 days.