Parameters defined in the configuration are also added to the iframe as an attribute about iframemanager

[orestbida]

All properties inside the iframe object — except params and onload — are converted to attributes for the iframe element.

Initially there were only 2-3 allowed properties inside the iframe object (and they were not treated as iframe attributes). This was changed in later releases by allowing any property to be added to the iframe element as an attribute.

Yes, the special iframe.params prop. is/was not needed at all! I will very likely remove it whenever v2 is out!

[orestbida]

There's an array of "not allowed props" internally:

iframemanager/src/iframemanager.js

Line 128 in 62e7a1c

const disallowedProps = ['onload', 'onerror', 'src'];

Adding the params string to the array should do the job for now.

[MoritzLost]

Yes, the special iframe.params prop. is/was not needed at all! I will very likely remove it whenever v2 is out!

Sounds good!

Adding the params string to the array should do the job for now.

Agreed, this would be a good workaround until v2 is ready.