various small backports from main

README.md

@@ -18,7 +18,7 @@ Lightpanda is the open-source browser made for headless usage:
 
 - Javascript execution
 - Support of Web APIs (partial, WIP)
-- Compatible with Playwright[^1], Puppeteer, chromedp through CDP
+- Compatible with Playwright[^1], Puppeteer, chromedp through [CDP](https://chromedevtools.github.io/devtools-protocol/)
 
 Fast web automation for AI agents, LLM training, scraping and testing:
 

src/browser/Page.zig

@@ -769,6 +769,76 @@ fn _wait(self: *Page, wait_ms: u32) !Session.WaitResult {
     }
 }
 
+fn printWaitAnalysis(self: *Page) void {
+    std.debug.print("load_state: {s}\n", .{@tagName(self._load_state)});
+    std.debug.print("parse_state: {s}\n", .{@tagName(std.meta.activeTag(self._parse_state))});
+    {
+        std.debug.print("\nactive requests: {d}\n", .{self._session.browser.http_client.active});
+        var n_ = self._session.browser.http_client.handles.in_use.first;
+        while (n_) |n| {
+            const handle: *Http.Client.Handle = @fieldParentPtr("node", n);
+            const transfer = Http.Transfer.fromEasy(handle.conn.easy) catch |err| {
+                std.debug.print(" - failed to load transfer: {any}\n", .{err});
+                break;
+            };
+            std.debug.print(" - {f}\n", .{transfer});
+            n_ = n.next;
+        }
+    }
+
+    {
+        std.debug.print("\nqueued requests: {d}\n", .{self._session.browser.http_client.queue.len()});
+        var n_ = self._session.browser.http_client.queue.first;
+        while (n_) |n| {
+            const transfer: *Http.Transfer = @fieldParentPtr("_node", n);
+            std.debug.print(" - {f}\n", .{transfer});
+            n_ = n.next;
+        }
+    }
+
+
+    {
+        std.debug.print("\ndeferreds: {d}\n", .{self._script_manager.defer_scripts.len()});
+        var n_ = self._script_manager.defer_scripts.first;
+        while (n_) |n| {
+            const script: *ScriptManager.Script = @fieldParentPtr("node", n);
+            std.debug.print(" - {s} complete: {any}\n", .{ script.url, script.complete });
+            n_ = n.next;
+        }
+    }
+
+    {
+        std.debug.print("\nasyncs: {d}\n", .{self._script_manager.async_scripts.len()});
+    }
+
+    {
+        std.debug.print("\nasyncs ready: {d}\n", .{self._script_manager.ready_scripts.len()});
+        var n_ = self._script_manager.ready_scripts.first;
+        while (n_) |n| {
+            const script: *ScriptManager.Script = @fieldParentPtr("node", n);
+            std.debug.print(" - {s} complete: {any}\n", .{ script.url, script.complete });
+            n_ = n.next;
+        }
+    }
+
+    const now = milliTimestamp(.monotonic);
+    {
+        std.debug.print("\nhigh_priority schedule: {d}\n", .{self.scheduler.high_priority.count()});
+        var it = self.scheduler.high_priority.iterator();
+        while (it.next()) |task| {
+            std.debug.print(" - {s} schedule: {d}ms\n", .{ task.name, task.run_at - now });
+        }
+    }
+
+    {
+        std.debug.print("\nlow_priority schedule: {d}\n", .{self.scheduler.low_priority.count()});
+        var it = self.scheduler.low_priority.iterator();
+        while (it.next()) |task| {
+            std.debug.print(" - {s} schedule: {d}ms\n", .{ task.name, task.run_at - now });
+        }
+    }
+}
+
 pub fn tick(self: *Page) void {
     if (comptime IS_DEBUG) {
         log.debug(.page, "tick", .{});

src/browser/Scheduler.zig

@@ -20,7 +20,7 @@ const std = @import("std");
 const builtin = @import("builtin");
 
 const log = @import("../log.zig");
-const timestamp = @import("../datetime.zig").milliTimestamp;
+const milliTimestamp = @import("../datetime.zig").milliTimestamp;
 
 const IS_DEBUG = builtin.mode == .Debug;
 
@@ -71,7 +71,7 @@ pub fn add(self: *Scheduler, ctx: *anyopaque, cb: Callback, run_in_ms: u32, opts
         .callback = cb,
         .sequence = seq,
         .name = opts.name,
-        .run_at = timestamp(.monotonic) + run_in_ms,
+        .run_at = milliTimestamp(.monotonic) + run_in_ms,
     });
 }
 
@@ -85,7 +85,7 @@ fn runQueue(self: *Scheduler, queue: *Queue) !?u64 {
         return null;
     }
 
-    const now = timestamp(.monotonic);
+    const now = milliTimestamp(.monotonic);
 
     while (queue.peek()) |*task_| {
         if (task_.run_at > now) {

src/browser/ScriptManager.zig

@@ -360,7 +360,7 @@ pub fn preloadImport(self: *ScriptManager, url: [:0]const u8, referrer: []const
 
     // This seems wrong since we're not dealing with an async import (unlike
     // getAsyncModule below), but all we're trying to do here is pre-load the
-    // script for execution at some point in the future (when waitForModule is
+    // script for execution at some point in the future (when waitForImport is
     // called).
     self.async_scripts.append(&script.node);
 }
@@ -564,7 +564,7 @@ fn parseImportmap(self: *ScriptManager, script: *const Script) !void {
     }
 }
 
-const Script = struct {
+pub const Script = struct {
     complete: bool,
     kind: Kind,
     status: u16 = 0,

src/main.zig

@@ -311,7 +311,7 @@ const Command = struct {
             \\                Filter out too verbose logs per scope:
             \\                http, unknown_prop, event, ...
             \\
-            \\ --user_agent_suffix
+            \\--user_agent_suffix
             \\                Suffix to append to the Lightpanda/X.Y User-Agent
             \\
         ;