Panic on .HTML()

[bazuker]

Rod Version: v0.116.1

The following code panics when frame.HTML() is called. frame is confirmed not to be nil.

I can provide full iframe HTML code if necessary.

The code to demonstrate your question

	hasVerify, cloudflareIframe, err := page.Has("iframe[src*='https://challenges.cloudflare.com']")
	if err == nil && hasVerify {
		log.Println("human verification detected")
		cloudflareIframe.MustWaitStable()
		log.Println("trying to pass")
		cf, err := page.Element("iframe")
		if err != nil {
			return nil, fmt.Errorf("failed to get cloudflare iframe: %w", err)
		}
		log.Println("got iframe")
		frame, err := cf.Frame()
		if err != nil {
			return nil, fmt.Errorf("failed to unwrap cloudflare frame: %w", err)
		}
		log.Println("targeted", frame)
		fmt.Println(frame.HTML()) // <---- PANICS HERE
	}

Log and stack trace

2024/06/26 21:38:49 human verification detected
2024/06/26 21:38:50 trying to pass
2024/06/26 21:38:50 got iframe
2024/06/26 21:38:50 targeted <page:6B33B27E>

panic recovered:
runtime error: invalid memory address or nil pointer dereference
/usr/local/go/src/runtime/panic.go:261 (0x102701377)
        panicmem: panic(memoryError)
/usr/local/go/src/runtime/signal_unix.go:881 (0x102701344)
        sigpanic: panicmem()
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/page_eval.go:350 (0x1029deaac)
        (*Page).getJSCtxID: obj, err := proto.DOMResolveNode{BackendNodeID: node.ContentDocument.BackendNodeID}.Call(p)
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/page_eval.go:249 (0x1029de0bb)
        (*Page).ensureJSHelper: jsCtxID, err := p.getJSCtxID()
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/page_eval.go:234 (0x1029ddeeb)
        (*Page).formatArgs: id, err := p.ensureJSHelper(obj)
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/page_eval.go:150 (0x1029ddb2b)
        (*Page).evaluate: args, err := p.formatArgs(opts)
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/page_eval.go:129 (0x1029dd6a7)
        (*Page).Evaluate: res, err = p.evaluate(opts)
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/query.go:172 (0x1029dfa4b)
        (*Page).ElementByJS.func2: res, err = p.Evaluate(opts.ByObject())
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/lib/utils/sleeper.go:140 (0x10287b85b)
        Retry: stop, err := fn()
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/query.go:167 (0x1029df8df)
        (*Page).ElementByJS: err = utils.Retry(p.ctx, p.sleeper(), func() (bool, error) {
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/query.go:143 (0x1029df607)
        (*Page).Element: return p.ElementByJS(evalHelper(js.Element, selector))
/Users/bazuker/go/pkg/mod/github.com/go-rod/[email protected]/page.go:106 (0x1029d9ef7)
        (*Page).HTML: el, err := p.Element("html")
/Users/bazuker/go/src/github.com/bazuker/hikebook/hikes_plugin.go:162 (0x102aba113)
        (*HikesPlugin).Run: fmt.Println(frame.HTML())
/Users/bazuker/go/pkg/mod/github.com/bazuker/[email protected]/pkg/manager/manager.go:190 (0x102ab8a8f)
        (*Manager).loadPlugins.func1: results, err := plugin.Run(params)
/Users/bazuker/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185 (0x102aaac23)
        (*Context).Next: c.handlers[c.index](c)
/Users/bazuker/go/pkg/mod/github.com/gin-gonic/[email protected]/recovery.go:102 (0x102aaac04)
        CustomRecoveryWithWriter.func1: c.Next()
/Users/bazuker/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185 (0x102aa686f)
        (*Context).Next: c.handlers[c.index](c)
/Users/bazuker/go/pkg/mod/github.com/bazuker/[email protected]/pkg/manager/middleware.go:19 (0x102ab855f)
        (*Manager).Run.loggerMiddleware.func4: c.Next()
/Users/bazuker/go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:185 (0x102aa9ae3)
        (*Context).Next: c.handlers[c.index](c)
/Users/bazuker/go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:633 (0x102aa966c)
        (*Engine).handleHTTPRequest: c.Next()
/Users/bazuker/go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:589 (0x102aa93b3)
        (*Engine).ServeHTTP: engine.handleHTTPRequest(c)
/usr/local/go/src/net/http/server.go:3137 (0x10299558b)
        serverHandler.ServeHTTP: handler.ServeHTTP(rw, req)
/usr/local/go/src/net/http/server.go:2039 (0x1029918c7)
        (*conn).serve: serverHandler{c.server}.ServeHTTP(w, w.req)
/usr/local/go/src/runtime/asm_arm64.s:1222 (0x10271f473)
        goexit: MOVD    R0, R0  // NOP