Example of wasm freezing

main.go

package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"

	"gioui.org/app"
	"gioui.org/io/system"
	"gioui.org/layout"
	"gioui.org/unit"
	"gioui.org/widget/material"

	"gioui.org/font/gofont"
)

type scaledConfig struct {
	Scale float32
}

func main() {
	gofont.Register()
	go func() {
		w := app.NewWindow()
		if err := loop(w); err != nil {
			log.Fatal(err)
		}
	}()
	app.Main()
}

func loop(w *app.Window) error {
	th := material.NewTheme()
	gtx := layout.NewContext(w.Queue())
	for {
		e := <-w.Events()
		switch e := e.(type) {
		case system.DestroyEvent:
			return e.Err
		case system.FrameEvent:
			gtx.Reset(e.Config, e.Size)
			kitchen(gtx, th)
			e.Frame(gtx.Ops)
		}
	}
}

var (
	list = &layout.List{
		Axis: layout.Vertical,
	}
	topLabel = "Hello, Gio"
)

func kitchen(gtx *layout.Context, th *material.Theme) {
	cl := &http.Client{}
	response, err := cl.Get("http://localhost:8080/health")
	if err != nil {
		log.Fatalf("%w", err)
	} else {
		defer response.Body.Close()
		contents, err := ioutil.ReadAll(response.Body)
		if err != nil {
			log.Fatalf("%w", err)
		}
		fmt.Printf("This is a test %s\n", string(contents))
	}
	widgets := []func(){
		func() {
			th.H3(topLabel).Layout(gtx)
		},
	}
	list.Layout(gtx, len(widgets), func(i int) {
		layout.UniformInset(unit.Dp(16)).Layout(gtx, widgets[i])
	})
}