Fix the error for SPFX development 'Access to XMLHttpRequest at ... from origin ... has been blocked by CORS policy'

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While the development SPFX for SharePoint 2019 once the loading of the webpart at 'workbench.aspx' page stopped. SharePoint server is installed at my virtual machine, the development of SPFX is local. At first I totally could not understand what's wrong. But soon started to look for the reason.

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Since 2009