Server don't conversions images to jxl format in Firefox Nightly

[MIKU_N]

Describe the bug
Firefox Nightly can be enabled JPEG XL supported via the image.jxl.enabled flag in about:config in Nightly.
But when I test,server don't conversions images to jxl format,why it happend?that is about Minimized Conversion?

To Reproduce
Just use Firefox Nightly,And enabled JPEG XL supported via the image.jxl.enabled flag in about:config

Expected behavior
I think if browser can be enabled JPEG XL supported,then the server should provide support.

Screenshots and logs

webp-webp-1  | 
webp-webp-1  |  
webp-webp-1  |          ▌ ▌   ▌  ▛▀▖ ▞▀▖                ▞▀▖
webp-webp-1  |          ▌▖▌▞▀▖▛▀▖▙▄▘ ▚▄ ▞▀▖▙▀▖▌ ▌▞▀▖▙▀▖ ▌▄▖▞▀▖
webp-webp-1  |          ▙▚▌▛▀ ▌ ▌▌   ▖ ▌▛▀ ▌  ▐▐ ▛▀ ▌   ▌ ▌▌ ▌
webp-webp-1  |          ▘ ▘▝▀▘▀▀ ▘   ▝▀ ▝▀▘▘   ▘ ▝▀▘▘   ▝▀ ▝▀
webp-webp-1  | 
webp-webp-1  |          WebP Server Go - v0.11.0
webp-webp-1  |          Developed by WebP Server team. https://github.com/webp-sh
webp-webp-1  | 
webp-webp-1  | Allowed file types as source: [jpg png jpeg bmp gif]
webp-webp-1  | Convert to WebP Enabled: true
webp-webp-1  | Convert to AVIF Enabled: true
webp-webp-1  | Convert to JXL Enabled: true
webp-webp-1  | WebP Server Go is Running on http://0.0.0.0:3333
webp-webp-1  | time="2024-04-09 17:48:16" level=warning msg="can't read metadata: open metadata/local/be7d584b2c1d29a5.json: no such file or directory" func="[38:webp_server_go/helper.ReadMetadata]"
webp-webp-1  | time="2024-04-09 17:48:17" level=info msg="WebP@70%: /opt/pics/piclist/upload/202311141658847.png->/opt/exhaust/local/be7d584b2c1d29a5.webp 2618893->229418 8.76% deflated" func="[284:webp_server_go/encoder.convertLog]"
webp-webp-1  | time="2024-04-09 17:48:23" level=info msg="AVIF@70%: /opt/pics/piclist/upload/202311141658847.png->/opt/exhaust/local/be7d584b2c1d29a5.avif 2618893->156645 5.98% deflated" func="[284:webp_server_go/encoder.convertLog]"
webp-webp-1  | 50.114.xxx.xxx - [2024-04-09 17:48:16] GET /piclist/upload/202311141658847.png 200  Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0
webp-webp-1  | 50.114.xxx.xxx - [2024-04-09 17:49:16] GET /piclist/upload/202311141658847.png 200  Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0

Environment (please complete the following information):

• OS: Windows 11
• version or branch: v0.11.0

[MIKU_N]

It seems that you have missed the head judgment of image/jxl.

webp_server_go/helper/helper.go

Lines 124 to 175 in ac30605

 func GuessSupportedFormat(header *fasthttp.RequestHeader) map[string]bool { 
 	var ( 
 		supported = map[string]bool{ 
 			"raw":  true, 
 			"webp": false, 
 			"avif": false, 
 			"jxl":  false, 
 		} 
  
 		ua     = string(header.Peek("user-agent")) 
 		accept = strings.ToLower(string(header.Peek("accept"))) 
 	) 
  
 	if strings.Contains(accept, "image/webp") { 
 		supported["webp"] = true 
 	} 
 	if strings.Contains(accept, "image/avif") { 
 		supported["avif"] = true 
 	} 
  
 	supportedWebPs := []string{"iPhone OS 14", "CPU OS 14", "iPhone OS 15", "CPU OS 15", "iPhone OS 16", "CPU OS 16", "iPhone OS 17", "CPU OS 17"} 
 	for _, version := range supportedWebPs { 
 		if strings.Contains(ua, version) { 
 			supported["webp"] = true 
 			break 
 		} 
 	} 
  
 	supportedAVIFs := []string{"iPhone OS 16", "CPU OS 16", "iPhone OS 17", "CPU OS 17"} 
 	for _, version := range supportedAVIFs { 
 		if strings.Contains(ua, version) { 
 			supported["avif"] = true 
 			break 
 		} 
 	} 
  
 	// Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 <- iPad 
 	// Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Safari/605.1.15 <- Mac 
 	// Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Mobile/15E148 Safari/604.1 <- iPhone @ Safari 
 	supportedJXLs := []string{"iPhone OS 17", "CPU OS 17", "Version/17"} 
 	if strings.Contains(ua, "iPhone") || strings.Contains(ua, "Macintosh") { 
 		for _, version := range supportedJXLs { 
 			if strings.Contains(ua, version) { 
 				supported["jxl"] = true 
 				break 
 			} 
 		} 
 	} 
  
 	return supported 
 } 
  

[Nova Kwok]

Should be fixed by #326, you can try using ghcr.io/webp-sh/webp_server_go:master image to see if it works by now.

[MIKU_N]

Should be fixed by #326, you can try using ghcr.io/webp-sh/webp_server_go:master image to see if it works by now.

Now it fixed!Thanks!