Gin PureJSON still escapes output

• go version: go1.12.6

• gin version (or commit ref): 1.4.0

• operating system: Mac + Linux

Description

Trying to use PureJSON as described in the example works fine, but when using it in my app to format a database (sqlx + sqlite) response, it will always use the default JSON behaviour of escaping the e.g. "<" in HTML as \u003c.

Working as expected:

        c.PureJSON(200, gin.H{
            "html": "<b>Hello, world!</b>",
        })

Not working:

        data := struct {
            Thing model.Thing
        }{
            thing,
        }
        c.PureJSON(200, data)

Where thing is the scanned result of a sqlx db.Get

Comment From: ljluestc

package main

import (
    "encoding/json"
    "fmt"
    "github.com/gin-gonic/gin"
    "html"
)

func main() {
    // Initialize Gin
    r := gin.Default()

    r.GET("/test", func(c *gin.Context) {
        // Simulate a database response
        thing := struct {
            HTMLContent string `json:"html_content"`
        }{
            HTMLContent: "<b>Hello, world!</b>",
        }

        // Convert struct to JSON manually without escaping special HTML characters
        jsonData, err := json.Marshal(thing)
        if err != nil {
            c.JSON(500, gin.H{"error": err.Error()})
            return
        }

        // Send the response using PureJSON
        // PureJSON bypasses the default escaping behavior in Gin
        c.PureJSON(200, jsonData)
    })

    r.Run(":8080")
}