I started learning ArcGIS API for JS today and I successfully displayed a simple basemap using the sample code provided in the first tutorial. However when I downloaded the 'Create Webmap' sample as a zip and tried to run it, it doesnot display any webmap except for the headers. I have tried changing web map IDs and although the sample runs in the sandbox, it displays blank screen when i download the html file and try to run it from my browser. Did anyone else experienced this issue? what can be the problem here. I have not modified the code in any way except for testing with different webmap IDs.