Selenium's `getEval` function is unexpectedly returning null, despite the fact that the corresponding JavaScript

While using Selenium, I am trying to execute a getEval function with the following javascript:

document.getElementById("j_id0:j_id3:mainBlock:j_id40").children[0].children[0].children[0].children[0].children[0].children[0] .children[2].children[0].children[0].children[0] .children[0].children[1];

Executing this code in the console returns the correct result.

However, when I navigate to the specific page where the element is located and click the "find" button in Selenium, the correct element is highlighted. But, when I run the same line of code in Selenium itself - even after navigating to the correct page and running ONLY that line - it throws an error message saying:

[error]Threw an exception: document.getElementById(...)is null

How can I resolve this issue?

javascriptseleniumgetelementbyid

Answer №1

To implement this, make sure to include this.browserbot.getUserWindow() before initiating your JavaScript code.

selenium.getEval("this.browserbot.getUserWindow().document.getElementById("j_id0:j_id3:mainBlock:j_id40").children[0].children[0].children[0].children[0].children[0].children[0] .children[2].children[0].children[0].children[0] .children[0].children[1]")

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