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When a component (not service) sync or simple async api function (see below) that the solution can call is implemented in browser-side component/service logic implementation ("definition" in .spec file), it is important to note that calling such a function when the form of that component is not already created in browser DOM will result in a temporary "force-load" of that form in a hidden div in the browser - just to be able to call that api function. As this is usually not useful and will slow-down the solution due to the hidden loading of a form, this situation should be avoided (either by the solution - calling the api call later after the form was shown - or, where possible, by using delay until form loads async api functions in components - see below).

Servoy will log warning messages each time a sync API call to browser executes when the browser doesn't have the needed form present in DOM yet (triggering a force-load of the form in a hidden div). Most of the times this happens when solutions call component sync api functions to browser inside the onShow handler of a form.