Goland development MacOS prompts "__go_build_main_go" to accept incoming network connections

Relive the scene of the tragedy

This is a common Go Web development time firewall prompt; The Gin sample code is as follows:

	engine := gin.Default()
	engine.GET("/health".func(ctx *gin.Context) {
		ctx.String(http.StatusOK, "up")
	})
	_ = engine.Run()
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Hot yao problem comes, occasionally appear hint this, point permit also went.

But if the development phase, countless debug every day, this product appears a hundred and eighty times, it is very cool to think

Instead, change the startup host header to localhost.

The MacOS firewall will consider any host header that is not a localhost to be a malicious connection (especially if it is initiated actively).

The following changes are made:

_ = engine.Run("localhost:")
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