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I am creating a 1 page mashup with 10 IFrames.
Each IFrame URL is set as retrieved from the DEV Hub single configurator.
When page opened in IE browser, only about 5 IFrames managed to load while the other 5 remains blank. The browser console reported following error
TypeError: Unable to get property 'then' of undefined or null reference
However when the same page is opened in Chrome, all the 10 IFrames are loaded without error.
I am also unable to find any Qlik articles that indicate IE limitations.
Any idea what can be the issue? Appreciate you help, thanks