Add support to launch Chrome

pkg/chrome/chrome.go

@@ -0,0 +1,33 @@
+package chrome
+
+import (
+	"context"
+	"strings"
+
+	"github.com/chromedp/chromedp"
+)
+
+var defaultOpts = []chromedp.ExecAllocatorOption{
+	chromedp.NoFirstRun,
+	chromedp.NoDefaultBrowserCheck,
+	chromedp.IgnoreCertErrors,
+	chromedp.Flag("test-type ", true), // This prevents the `ignore-certificate-errors` warning.
+}
+
+type Config struct {
+	ProxyServer      string
+	ProxyBypassHosts []string
+}
+
+// NewExecAllocator returns a new context setup with a chromedp.ExecAllocator.
+// Its `context.Context` return value can be used to create subsequent contexts for interacting
+// with an allocated Chrome browser.
+func NewExecAllocator(ctx context.Context, cfg Config) (context.Context, context.CancelFunc) {
+	proxyBypass := strings.Join(append([]string{"<-loopback"}, cfg.ProxyBypassHosts...), ";")
+	opts := append(defaultOpts,
+		chromedp.ProxyServer(cfg.ProxyServer),
+		chromedp.Flag("proxy-bypass-list", proxyBypass),
+	)
+
+	return chromedp.NewExecAllocator(ctx, opts...)
+}