[🐛 Bug]: IWebElement.GetDomProperty("style") returns "System.Collections.Generic.Dictionary`2[System.String,System.Object]" (as string)

[Mek7]

What happened?

I am upgrading Selenium test code in .NET 8 from Selenium.Support version 4.25.0 to 4.27.0
Because IWebElement.GetAttribute() method is now marked as deprecated, I replaced it with GetDomProperty().
For example:
webDriver.FindElement(By....whatever).GetDomProperty("style")
should return a string like
background: rgb(65, 131, 215); height: 8.125%;
but returns this string:
System.Collections.Generic.Dictionary2[System.String,System.Object]`
Looks like a bug - that string is the string representation of calling .ToString() on a Dictionary instance.
Or is it supposed to work like this?

When I use GetDomAttribute() instead of GetDomProperty(), the correct string is returned:
background: rgb(65, 131, 215); height: 8.125%;

How can we reproduce the issue?

See above in "What happened"

Relevant log output

Not sure - using Selenium in Visual Studio unit test framework. Not seeing any useful stuff in debug output.

Operating System

Windows 11

Selenium version

.NET 4.27.0

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

Firefox 132.0.2

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

GeckoDriver 0.35.0

Are you using Selenium Grid?

no

[github-actions]

@Mek7, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[nvborisenko]

For maintainers:

GetDomProperty:

var style = element.GetDomProperty("style");
Console.WriteLine(style); // System.Object[]

21:00:42.948 TRACE HttpCommandExecutor: >> GET RequestUri: http://localhost:57238/session/92b41016a843a63333ee03f6aa03c648/element/f.533155AB6C15ADAF23E24748C23919EA.d.A26436E61238A5F5AA2A84DDBC427528.e.12/property/style, Content: null, Headers: 3
21:00:42.955 TRACE HttpCommandExecutor: << StatusCode: 200, ReasonPhrase: OK, Content: System.Net.Http.HttpConnectionResponseContent, Headers: 1
{"value":["height","line-height","width"]}

GetDomAttribute:

var style = element.GetDomAttribute("style");
Console.WriteLine(style); // height:20px;line-height:20px;width:20px

21:11:53.355 TRACE HttpCommandExecutor: >> GET RequestUri: http://localhost:56622/session/e66e568e99e1ec12698fef989bd7173e/element/f.36FADB5E54CA2D7404527200702A6B67.d.BBE3AC63C943932979074E4D6C823EDA.e.13/attribute/style, Content: null, Headers: 3
21:11:53.362 TRACE HttpCommandExecutor: << StatusCode: 200, ReasonPhrase: OK, Content: System.Net.Http.HttpConnectionResponseContent, Headers: 1
{"value":"height:20px;line-height:20px;width:20px"}

I thought I broke it recently, but no, the same behavior using "old" selenium versions.

For @Mek7, seems in your case it is better to use DomAttribute?

In any case string representation of GetDomProperty() should be better! Given that it returns string, it must be even better!

[Mek7]

Yes, GetDomAttribute() works OK but GetDomProperty() returns the ToString() result of a dictionary.
Both methods return string. When I migrated the old code, when one did not work, I used the other :)

[ratoaq2]

It seems we have a similar issue with java.
element.getDomProperty("style") returns something like [height, visibility]