export_results: do not proceed when there is no component url
This fixes a bug where the export would proceed if the component's url did not exist for some reason. The exporter would then crash later on when trying to, e.g., split() on the url.
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This fixes a bug where the export would proceed if the component's url did not exist for some reason. The exporter would then crash later on when trying to, e.g., split() on the url.