diff --git a/client/client.go b/client/client.go
index d38955e..d091c39 100644
--- a/client/client.go
+++ b/client/client.go
@@ -26,9 +26,6 @@ const (
)
var (
- // ErrInvalidProtocolVersion is the invalid protocol version error.
- ErrInvalidProtocolVersion = errors.New("invalid protocol version")
-
// ErrUnsupportedProtocolType is the unsupported protocol type error.
ErrUnsupportedProtocolType = errors.New("unsupported protocol type")
@@ -158,9 +155,9 @@ func (c *Client) loadProtocolInfo(ctxt context.Context) (string, string, error)
}
if m := browserRE.FindAllStringSubmatch(v["Browser"], -1); len(m) != 0 {
- c.ver = v["Protocol-Version"]
c.typ = strings.ToLower(m[0][0])
}
+ c.ver = v["Protocol-Version"]
}
return c.ver, c.typ, nil
@@ -180,7 +177,7 @@ func (c *Client) newTarget(ctxt context.Context, buf []byte) (Target, error) {
}
switch typ {
- case "chrome", "chromium", "microsoft edge", "safari":
+ case "chrome", "chromium", "microsoft edge", "safari", "":
x := new(Chrome)
if buf != nil {
err = easyjson.Unmarshal(buf, x)
diff --git a/examples/headless/.gitignore b/examples/headless/.gitignore
new file mode 100644
index 0000000..cf924f1
--- /dev/null
+++ b/examples/headless/.gitignore
@@ -0,0 +1,2 @@
+headless
+headless.exe
diff --git a/examples/headless/README.md b/examples/headless/README.md
new file mode 100644
index 0000000..cae80b1
--- /dev/null
+++ b/examples/headless/README.md
@@ -0,0 +1,17 @@
+# About headless
+
+This is a version of the simple example but with the chromedp settings changed
+to use the docker [yukinying/chrome-headless](yukinying/chrome-headless) image.
+
+## Running
+
+```sh
+# retrieve docker image
+docker pull yukinying/chrome-headless
+
+# start docker headless
+docker run -i -t --shm-size=256m --rm --name=chrome-headless -p=127.0.0.1:9222:9222 yukinying/chrome-headless about:blank
+
+# run chromedp headless example
+go build && ./headless
+```
diff --git a/examples/headless/main.go b/examples/headless/main.go
new file mode 100644
index 0000000..f667349
--- /dev/null
+++ b/examples/headless/main.go
@@ -0,0 +1,59 @@
+package main
+
+import (
+ "context"
+ "fmt"
+ "io/ioutil"
+ "log"
+ "time"
+
+ cdp "github.com/knq/chromedp"
+ cdptypes "github.com/knq/chromedp/cdp"
+ "github.com/knq/chromedp/client"
+)
+
+func main() {
+ var err error
+
+ // create context
+ ctxt, cancel := context.WithCancel(context.Background())
+ defer cancel()
+
+ // create chrome
+ c, err := cdp.New(ctxt, cdp.WithTargets(client.New().WatchPageTargets(ctxt)))
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ // run task list
+ var site, res string
+ err = c.Run(ctxt, googleSearch("site:brank.as", "Easy Money Management", &site, &res))
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ log.Printf("saved screenshot of #testimonials from search result listing `%s` (%s)", res, site)
+}
+
+func googleSearch(q, text string, site, res *string) cdp.Tasks {
+ var buf []byte
+ sel := fmt.Sprintf(`//a[text()[contains(., '%s')]]`, text)
+ return cdp.Tasks{
+ cdp.Navigate(`https://www.google.com`),
+ cdp.Sleep(2 * time.Second),
+ cdp.WaitVisible(`#hplogo`, cdp.ByID),
+ cdp.SendKeys(`#lst-ib`, q, cdp.ByID),
+ cdp.Click(`input[name="btnK"]`, cdp.ByQuery),
+ cdp.WaitNotVisible(`input[name="btnI"]`, cdp.ByQuery),
+ cdp.Text(sel, res),
+ cdp.Click(sel),
+ cdp.Sleep(2 * time.Second),
+ cdp.WaitVisible(`#footer`, cdp.ByQuery),
+ cdp.WaitNotVisible(`div.v-middle > div.la-ball-clip-rotate`, cdp.ByQuery),
+ cdp.Location(site),
+ cdp.Screenshot(`#testimonials`, &buf, cdp.ByID),
+ cdp.ActionFunc(func(context.Context, cdptypes.FrameHandler) error {
+ return ioutil.WriteFile("testimonials.png", buf, 0644)
+ }),
+ }
+}
diff --git a/testdata/alert.html b/testdata/alert.html
new file mode 100644
index 0000000..13b4ba7
--- /dev/null
+++ b/testdata/alert.html
@@ -0,0 +1,17 @@
+
+
+
+javascript alert test
+
+
+
+
+
+
+
+
diff --git a/testdata/child1.html b/testdata/child1.html
new file mode 100644
index 0000000..e1102f7
--- /dev/null
+++ b/testdata/child1.html
@@ -0,0 +1,10 @@
+
+
+child 1
+
+
+
+
+
diff --git a/testdata/child2.html b/testdata/child2.html
new file mode 100644
index 0000000..e89823c
--- /dev/null
+++ b/testdata/child2.html
@@ -0,0 +1,10 @@
+
+
+child 2
+
+
+
+
+
diff --git a/testdata/frameset.html b/testdata/frameset.html
new file mode 100644
index 0000000..7f26ec8
--- /dev/null
+++ b/testdata/frameset.html
@@ -0,0 +1,9 @@
+
+
+ frameset test
+
+
+