Blank page when using Gzip middleware

[mangaldev]

I use gzip middleware as it is needed for faster througput, but on using it swagger doesnt work.

[mangaldev]

Turned out we can skip the middleware only for swagger.

e.Use(middleware.GzipWithConfig(middleware.GzipConfig{
		Skipper: func(c echo.Context) bool {
			if strings.Contains(c.Request().URL.Path, "swagger") {
				return true
			}
			return false
		},
	}))

[covert8]

Hi I'm using a dependency that enables gzip middleware. Is there an other workaround?
What specifically causes this behaviour, so I have a clue where to look to fix it.

[wantdrink]

I have the same issue and commented in #3,

[Nexucis]

On my side, I didn't want to change the gzip configuration. So I ended up by manually creating the route required. Here is a piece of code for others that don't want to change the gzip config as well:

import (
	"net/http"

	"github.com/labstack/echo/v4"
	"github.com/swaggo/files"
)

type Endpoint struct {
}

func (e *Endpoint) RegisterRoutes(g *echo.Group) {
	g.GET("/favicon-16x16.png", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "image/png", swaggerFiles.FileFavicon16x16Png)
	})
	g.GET("/favicon-32x32.png", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "image/png", swaggerFiles.FileFavicon32x32Png)
	})
	g.GET("/swagger-ui.css", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/css", swaggerFiles.FileSwaggerUICSS)
	})
	g.GET("/swagger-ui.css.map", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/css", swaggerFiles.FileSwaggerUICSSMap)
	})
	g.GET("/index.html", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/html; charset=UTF-8", []byte(indexTempl))
	})
	g.GET("/doc.json", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "application/json; charset=UTF-8", []byte(docAPI.Swagger))
	})
	g.GET("/swagger-ui.js", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/javascript", swaggerFiles.FileSwaggerUIJs)
	})
	g.GET("/swagger-ui.js.map", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/javascript", swaggerFiles.FileSwaggerUIJsMap)
	})
	g.GET("/swagger-ui-bundle.js", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/javascript", swaggerFiles.FileSwaggerUIBundleJs)
	})
	g.GET("/swagger-ui-bundle.js.map", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/javascript", swaggerFiles.FileSwaggerUIBundleJsMap)
	})
	g.GET("/swagger-ui-standalone-preset.js", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/javascript", swaggerFiles.FileSwaggerUIStandalonePresetJs)
	})
	g.GET("/swagger-ui-standalone-preset.js.map", func(c echo.Context) error {
		return c.Blob(http.StatusOK, "text/javascript", swaggerFiles.FileSwaggerUIStandalonePresetJsMap)
	})
}

[kesuskim]

This seems with gzip middleware somehow flush does not work, so manually doing flush works OK.
I made patch for this.