When I call $(element).attr('class') when javascript context:top (chrome console), it's not working. When I change it to OffAmazonPaymentsWidgets1IFrame, it's working, beacause this element in an other iframe and have other html tag in this frame. How could I change javascript context?
How to change javascript context in jquery?
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1 Answers
It may be because the iframe has extra set of restrictions due to the present of the sandbox attribute, such as not allowing javascript in the iframe.
"The sandbox attribute enables an extra set of restrictions for the content in the iframe.
When the sandbox attribute is present, and it will:
treat the content as being from a unique origin
block form submission
block script execution
disable APIs
prevent links from targeting other browsing contexts
prevent content from using plugins
prevent the content to navigate its top-level browsing context
block automatically triggered features (such as automatically playing a video or automatically focusing a form control)
The value of the sandbox attribute can either be just sandbox (then all restrictions are applied), or a space-separated list of pre-defined values that will REMOVE the particular restrictions."
Quoted from: https://www.w3schools.com/tags/att_iframe_sandbox.asp
You can try allowing script by setting the sandbox attribute in the iframe as below:
<iframe src="demo_iframe_sandbox_origin.htm" sandbox="allow-scripts"></iframe>
Quoted from: https://www.w3schools.com/tags/att_iframe_sandbox.asp
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