[Progress Communities] [Progress OpenEdge ABL] Forum Post: RE: Clarification on number of calls to BE's from JSDO

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egarcia

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Hello Christian, The behavior that you are seeing is expected. The options request happens automatically by the web browser for cross domain requests as part of preflight request. Related link: developer.mozilla.org/.../CORS The request to the catalog would load only once for the session. The GET request for the data would happen whenever there is a READ. The PUT request (invoke request for count) happens because server-side processing is used and the Grid needs to know the number of records for paging. If required, it is possible to use a custom filtering (instead of the JSON Filter Pattern (JFP) as mappingType) and calculate and return the count as part of the READ. I hope this helps.

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