How to control behavior for missing URL params? (1.3.0 - 1.4.0 change)

[pmalekn]

Description

I'm working on migrating from 1.3.0 to 1.4.0 (or 1.5.0) and I've discovered that 1.3.0 for the following snippet

router := gin.New()
router.GET("/func/:id/details", func(c *gin.Context) {
    value := c.Param("id")
    fmt.Printf("value is %v\n", value)
})

Would always get to the handler even when requesting /func//details (note the missing URL param) whereas 1.4.0 and above will return 404.

Is it possible to control this behavior? (to work the same way as it worked in 1.3.0?)

How to reproduce

Start below router

router := gin.New()
router.GET("/func/:id/details", func(c *gin.Context) {
    value := c.Param("id")
    fmt.Printf("value is %v\n", value)
})
router.Run("localhost:8080")

And make the following request with curl

curl -i localhost:8080/func//details

Expectations

HTTP 200 (get inside the handler)

Actual result

HTTP 404

Environment

• go version: 1.13.5
• gin version (or commit ref): 1.3.0
• operating system: Mac os 10.15.2