Looks like there is some problem with loading the ResizeSensor, which is part of the element queries support (for widgets mainly): Do you use any extensions? Does your mashup load any other libraries that might interfere with the loading of qlik? Are they loaded before or after qlik?
The fact that it is intermittent might mean that it is a timing issue.
Hope this is of some help
Thanks a lot Erik for your response.
We did some analysis on ResizeSensor. As per require.js code, It is expecting the needed files in folder -
We don't have css-element-queries folder at all.
We use modified version of FieldUI extension heavily for drop down and default selection features. We are trying to understand if this is making any difference.
Regarding sequence of loading of other libraries, we will get back with more details.
One important observation is, when loading fails, looks like connection with engine is failed, because any change in filters, dimensions(we change them dynamically) are not responded at all. In normal situation, we change charts through .NET drop downs, we change dimensions, and all works well.
We see below screen in error situation. We have dynamic title, and we do see selections in the fields used in title and they should have appeared in the title.
Element queries are included in qlik.js.
Hope this helps
Thanks Erik for the insights.
We are working on correcting timing issue as you suggested. Loading require.js quite early and by some code maintenance, we are seeing big improvements.
We are still working on testing it without extensions. Hopefully we will have all the answers before start of next week.
Appreciate all your support.
Thanks erik.wetterberg for your response. We tried disabling the extensions and the error still persists.
Below is the network snapshot shows the sequence of js loading.
Below is the line in QS.js that loads Qlik.js and throws an error "Uncaught Error: Module name "ResizeSensor" has not been loaded yet for context: _. Use require()".
Any help/pointers would be highly appreciated!