DevTools failed to load SourceMap: Could not load content for https://dev.mobiledigitalplatform.com/static/js/114.ab6c9c84.chunk.js.map: Connection error: net::ERR_CONNECTION_CLOSED code example

Example: DevTools failed to load SourceMap: Could not load content for

Open Developer Tools, 
go to "Settings" for Developer Tools, 
then uncheck Enable JavaScript Sourcemaps under the "Sources" settings.
Restart Browser if needed