$logProvider debug logging default off from AngularJS 1.5
AngularJS 1.5 changed the default for $logProvider.enableDebugLogging from true to false. In 1.4 and earlier, $log.debug calls from Angular internals and third-party modules were emitted by default, which increased console volume. From 1.5 onward the flag defaults to false and debug output is suppressed unless explicitly enabled in the module config phase. T
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