diff --git a/src/server/dialog.ts b/src/server/dialog.ts
index a50b9dd763..84f022cdaa 100644
--- a/src/server/dialog.ts
+++ b/src/server/dialog.ts
@@ -56,13 +56,11 @@ export class Dialog extends SdkObject {
     assert(!this._handled, 'Cannot accept dialog which is already handled!');
     this._handled = true;
     await this._onHandle(true, promptText);
-    this._page.emit(Page.Events.InternalDialogClosed, this);
   }
 
   async dismiss() {
     assert(!this._handled, 'Cannot dismiss dialog which is already handled!');
     this._handled = true;
     await this._onHandle(false);
-    this._page.emit(Page.Events.InternalDialogClosed, this);
   }
 }
diff --git a/src/server/page.ts b/src/server/page.ts
index 5677d1ebe5..06fb106a53 100644
--- a/src/server/page.ts
+++ b/src/server/page.ts
@@ -97,7 +97,6 @@ export class Page extends SdkObject {
     Crash: 'crash',
     Console: 'console',
     Dialog: 'dialog',
-    InternalDialogClosed: 'internaldialogclosed',
     Download: 'download',
     FileChooser: 'filechooser',
     DOMContentLoaded: 'domcontentloaded',
diff --git a/src/server/trace/common/traceEvents.ts b/src/server/trace/common/traceEvents.ts
index d1851467dd..05bf5dc879 100644
--- a/src/server/trace/common/traceEvents.ts
+++ b/src/server/trace/common/traceEvents.ts
@@ -66,35 +66,6 @@ export type FrameSnapshotTraceEvent = {
   snapshot: FrameSnapshot,
 };
 
-export type DialogOpenedEvent = {
-  timestamp: number,
-  type: 'dialog-opened',
-  pageId: string,
-  dialogType: string,
-  message?: string,
-};
-
-export type DialogClosedEvent = {
-  timestamp: number,
-  type: 'dialog-closed',
-  pageId: string,
-  dialogType: string,
-};
-
-export type NavigationEvent = {
-  timestamp: number,
-  type: 'navigation',
-  pageId: string,
-  url: string,
-  sameDocument: boolean,
-};
-
-export type LoadEvent = {
-  timestamp: number,
-  type: 'load',
-  pageId: string,
-};
-
 export type TraceEvent =
     ContextCreatedTraceEvent |
     PageCreatedTraceEvent |
@@ -102,8 +73,4 @@ export type TraceEvent =
     ScreencastFrameTraceEvent |
     ActionTraceEvent |
     ResourceSnapshotTraceEvent |
-    FrameSnapshotTraceEvent |
-    DialogOpenedEvent |
-    DialogClosedEvent |
-    NavigationEvent |
-    LoadEvent;
+    FrameSnapshotTraceEvent;
diff --git a/src/server/trace/recorder/tracing.ts b/src/server/trace/recorder/tracing.ts
index 58f6a5676f..c501ae9b0d 100644
--- a/src/server/trace/recorder/tracing.ts
+++ b/src/server/trace/recorder/tracing.ts
@@ -21,9 +21,7 @@ import yazl from 'yazl';
 import { calculateSha1, createGuid, mkdirIfNeeded, monotonicTime } from '../../../utils/utils';
 import { Artifact } from '../../artifact';
 import { BrowserContext } from '../../browserContext';
-import { Dialog } from '../../dialog';
 import { ElementHandle } from '../../dom';
-import { Frame, NavigationEvent } from '../../frames';
 import { helper, RegisteredListener } from '../../helper';
 import { CallMetadata, InstrumentationListener, SdkObject } from '../../instrumentation';
 import { Page } from '../../page';
@@ -188,51 +186,6 @@ export class Tracing implements InstrumentationListener {
       page.setScreencastOptions({ width: 800, height: 600, quality: 90 });
 
     this._eventListeners.push(
-        helper.addEventListener(page, Page.Events.Dialog, (dialog: Dialog) => {
-          const event: trace.DialogOpenedEvent = {
-            timestamp: monotonicTime(),
-            type: 'dialog-opened',
-            pageId,
-            dialogType: dialog.type(),
-            message: dialog.message(),
-          };
-          this._appendTraceEvent(event);
-        }),
-
-        helper.addEventListener(page, Page.Events.InternalDialogClosed, (dialog: Dialog) => {
-          const event: trace.DialogClosedEvent = {
-            timestamp: monotonicTime(),
-            type: 'dialog-closed',
-            pageId,
-            dialogType: dialog.type(),
-          };
-          this._appendTraceEvent(event);
-        }),
-
-        helper.addEventListener(page.mainFrame(), Frame.Events.Navigation, (navigationEvent: NavigationEvent) => {
-          if (page.mainFrame().url() === 'about:blank')
-            return;
-          const event: trace.NavigationEvent = {
-            timestamp: monotonicTime(),
-            type: 'navigation',
-            pageId,
-            url: navigationEvent.url,
-            sameDocument: !navigationEvent.newDocument,
-          };
-          this._appendTraceEvent(event);
-        }),
-
-        helper.addEventListener(page, Page.Events.Load, () => {
-          if (page.mainFrame().url() === 'about:blank')
-            return;
-          const event: trace.LoadEvent = {
-            timestamp: monotonicTime(),
-            type: 'load',
-            pageId,
-          };
-          this._appendTraceEvent(event);
-        }),
-
         helper.addEventListener(page, Page.Events.ScreencastFrame, params => {
           const sha1 = calculateSha1(createGuid()); // no need to compute sha1 for screenshots
           const event: trace.ScreencastFrameTraceEvent = {
@@ -248,7 +201,6 @@ export class Tracing implements InstrumentationListener {
             await fsWriteFileAsync(path.join(this._resourcesDir!, sha1), params.buffer).catch(() => {});
           });
         }),
-
         helper.addEventListener(page, Page.Events.Close, () => {
           const event: trace.PageDestroyedTraceEvent = {
             timestamp: monotonicTime(),
diff --git a/src/server/trace/viewer/traceModel.ts b/src/server/trace/viewer/traceModel.ts
index 81481b7029..28179eee13 100644
--- a/src/server/trace/viewer/traceModel.ts
+++ b/src/server/trace/viewer/traceModel.ts
@@ -34,18 +34,10 @@ export class TraceModel {
   appendEvents(events: trace.TraceEvent[], snapshotStorage: SnapshotStorage) {
     for (const event of events)
       this.appendEvent(event);
-    const actions: ActionEntry[] = [];
+    const actions: trace.ActionTraceEvent[] = [];
     for (const page of this.contextEntry!.pages)
       actions.push(...page.actions);
-
-    const resources = snapshotStorage.resources().reverse();
-    actions.reverse();
-
-    for (const action of actions) {
-      while (resources.length && resources[0].timestamp > action.timestamp)
-        action.resources.push(resources.shift()!);
-      action.resources.reverse();
-    }
+    this.contextEntry!.resources = snapshotStorage.resources();
   }
 
   appendEvent(event: trace.TraceEvent) {
@@ -56,6 +48,7 @@ export class TraceModel {
           endTime: Number.MIN_VALUE,
           created: event,
           pages: [],
+          resources: []
         };
         break;
       }
@@ -64,7 +57,7 @@ export class TraceModel {
           created: event,
           destroyed: undefined as any,
           actions: [],
-          interestingEvents: [],
+          events: [],
           screencastFrames: [],
         };
         this.pageEntries.set(event.pageId, pageEntry);
@@ -82,20 +75,14 @@ export class TraceModel {
       case 'action': {
         const metadata = event.metadata;
         const pageEntry = this.pageEntries.get(metadata.pageId!)!;
-        const action: ActionEntry = {
-          actionId: metadata.id,
-          resources: [],
-          ...event,
-        };
-        pageEntry.actions.push(action);
+        pageEntry.actions.push(event);
         break;
       }
-      case 'dialog-opened':
-      case 'dialog-closed':
-      case 'navigation':
-      case 'load': {
-        const pageEntry = this.pageEntries.get(event.pageId)!;
-        pageEntry.interestingEvents.push(event);
+      case 'event': {
+        const metadata = event.metadata;
+        const pageEntry = this.pageEntries.get(metadata.pageId!);
+        if (pageEntry)
+          pageEntry.events.push(event);
         break;
       }
       case 'resource-snapshot':
@@ -105,8 +92,10 @@ export class TraceModel {
         this._snapshotStorage.addFrameSnapshot(event.snapshot);
         break;
     }
-    this.contextEntry!.startTime = Math.min(this.contextEntry!.startTime, event.timestamp);
-    this.contextEntry!.endTime = Math.max(this.contextEntry!.endTime, event.timestamp);
+    if (event.type === 'action' || event.type === 'event') {
+      this.contextEntry!.startTime = Math.min(this.contextEntry!.startTime, event.metadata.startTime);
+      this.contextEntry!.endTime = Math.max(this.contextEntry!.endTime, event.metadata.endTime);
+    }
   }
 }
 
@@ -115,15 +104,14 @@ export type ContextEntry = {
   endTime: number;
   created: trace.ContextCreatedTraceEvent;
   pages: PageEntry[];
+  resources: ResourceSnapshot[];
 }
 
-export type InterestingPageEvent = trace.DialogOpenedEvent | trace.DialogClosedEvent | trace.NavigationEvent | trace.LoadEvent;
-
 export type PageEntry = {
   created: trace.PageCreatedTraceEvent;
   destroyed: trace.PageDestroyedTraceEvent;
-  actions: ActionEntry[];
-  interestingEvents: InterestingPageEvent[];
+  actions: trace.ActionTraceEvent[];
+  events: trace.ActionTraceEvent[];
   screencastFrames: {
     sha1: string,
     timestamp: number,
@@ -132,11 +120,6 @@ export type PageEntry = {
   }[]
 }
 
-export type ActionEntry = trace.ActionTraceEvent & {
-  actionId: string;
-  resources: ResourceSnapshot[]
-};
-
 export class PersistentSnapshotStorage extends BaseSnapshotStorage {
   private _resourcesDir: string;
 
diff --git a/src/web/traceViewer/ui/actionList.tsx b/src/web/traceViewer/ui/actionList.tsx
index c61de47c9f..6f468fdf12 100644
--- a/src/web/traceViewer/ui/actionList.tsx
+++ b/src/web/traceViewer/ui/actionList.tsx
@@ -14,17 +14,17 @@
   limitations under the License.
 */
 
-import { ActionEntry } from '../../../server/trace/viewer/traceModel';
 import './actionList.css';
 import './tabbedPane.css';
 import * as React from 'react';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
 
 export interface ActionListProps {
-  actions: ActionEntry[],
-  selectedAction: ActionEntry | undefined,
-  highlightedAction: ActionEntry | undefined,
-  onSelected: (action: ActionEntry) => void,
-  onHighlighted: (action: ActionEntry | undefined) => void,
+  actions: ActionTraceEvent[],
+  selectedAction: ActionTraceEvent | undefined,
+  highlightedAction: ActionTraceEvent | undefined,
+  onSelected: (action: ActionTraceEvent) => void,
+  onHighlighted: (action: ActionTraceEvent | undefined) => void,
 }
 
 export const ActionList: React.FC<ActionListProps> = ({
@@ -68,16 +68,16 @@ export const ActionList: React.FC<ActionListProps> = ({
       }}
       ref={actionListRef}
     >
-      {actions.map(actionEntry => {
-        const { metadata, actionId } = actionEntry;
-        const selectedSuffix = actionEntry === selectedAction ? ' selected' : '';
-        const highlightedSuffix = actionEntry === highlightedAction ? ' highlighted' : '';
+      {actions.map(action => {
+        const { metadata } = action;
+        const selectedSuffix = action === selectedAction ? ' selected' : '';
+        const highlightedSuffix = action === highlightedAction ? ' highlighted' : '';
         return <div
           className={'action-entry' + selectedSuffix + highlightedSuffix}
-          key={actionId}
-          onClick={() => onSelected(actionEntry)}
-          onMouseEnter={() => onHighlighted(actionEntry)}
-          onMouseLeave={() => (highlightedAction === actionEntry) && onHighlighted(undefined)}
+          key={metadata.id}
+          onClick={() => onSelected(action)}
+          onMouseEnter={() => onHighlighted(action)}
+          onMouseLeave={() => (highlightedAction === action) && onHighlighted(undefined)}
         >
           <div className={'action-error codicon codicon-issues'} hidden={!metadata.error} />
           <div className='action-title'>{metadata.apiName || metadata.method}</div>
diff --git a/src/web/traceViewer/ui/logsTab.tsx b/src/web/traceViewer/ui/logsTab.tsx
index 07604e7457..596f43bcfb 100644
--- a/src/web/traceViewer/ui/logsTab.tsx
+++ b/src/web/traceViewer/ui/logsTab.tsx
@@ -14,18 +14,18 @@
  * limitations under the License.
  */
 
-import { ActionEntry } from '../../../server/trace/viewer/traceModel';
 import * as React from 'react';
 import './logsTab.css';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
 
 export const LogsTab: React.FunctionComponent<{
-  actionEntry: ActionEntry | undefined,
-}> = ({ actionEntry }) => {
+  action: ActionTraceEvent | undefined,
+}> = ({ action }) => {
   let logs: string[] = [];
-  if (actionEntry) {
-    logs = actionEntry.metadata.log || [];
-    if (actionEntry.metadata.error)
-      logs = [actionEntry.metadata.error, ...logs];
+  if (action) {
+    logs = action.metadata.log || [];
+    if (action.metadata.error)
+      logs = [action.metadata.error, ...logs];
   }
   return <div className='logs-tab'>{
     logs.map((logLine, index) => {
diff --git a/src/web/traceViewer/ui/networkTab.tsx b/src/web/traceViewer/ui/networkTab.tsx
index ca33af8077..7191619642 100644
--- a/src/web/traceViewer/ui/networkTab.tsx
+++ b/src/web/traceViewer/ui/networkTab.tsx
@@ -14,18 +14,25 @@
  * limitations under the License.
  */
 
-import { ActionEntry } from '../../../server/trace/viewer/traceModel';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
+import { ContextEntry } from '../../../server/trace/viewer/traceModel';
 import './networkTab.css';
 import * as React from 'react';
 import { NetworkResourceDetails } from './networkResourceDetails';
+import { ResourceSnapshot } from '../../../server/snapshot/snapshotTypes';
 
 export const NetworkTab: React.FunctionComponent<{
-  actionEntry: ActionEntry | undefined,
-}> = ({ actionEntry }) => {
+  context: ContextEntry,
+  action: ActionTraceEvent | undefined,
+  nextAction: ActionTraceEvent | undefined,
+}> = ({ context, action, nextAction }) => {
   const [selected, setSelected] = React.useState(0);
 
+  const resources: ResourceSnapshot[] = context.resources.filter(resource => {
+    return action && resource.timestamp > action.metadata.startTime && (!nextAction || resource.timestamp < nextAction.metadata.startTime);
+  });
   return <div className='network-tab'>{
-    (actionEntry ? actionEntry.resources : []).map((resource, index) => {
+    resources.map((resource, index) => {
       return <NetworkResourceDetails resource={resource} key={index} index={index} selected={selected === index} setSelected={setSelected} />;
     })
   }</div>;
diff --git a/src/web/traceViewer/ui/snapshotTab.tsx b/src/web/traceViewer/ui/snapshotTab.tsx
index d7fdd49be1..b435a8b78e 100644
--- a/src/web/traceViewer/ui/snapshotTab.tsx
+++ b/src/web/traceViewer/ui/snapshotTab.tsx
@@ -14,23 +14,23 @@
  * limitations under the License.
  */
 
-import { ActionEntry } from '../../../server/trace/viewer/traceModel';
 import { Size } from '../geometry';
 import './snapshotTab.css';
 import './tabbedPane.css';
 import * as React from 'react';
 import { useMeasure } from './helpers';
 import type { Point } from '../../../common/types';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
 
 export const SnapshotTab: React.FunctionComponent<{
-  actionEntry: ActionEntry | undefined,
+  action: ActionTraceEvent | undefined,
   snapshotSize: Size,
-}> = ({ actionEntry, snapshotSize }) => {
+}> = ({ action, snapshotSize }) => {
   const [measure, ref] = useMeasure<HTMLDivElement>();
   let [snapshotIndex, setSnapshotIndex] = React.useState(0);
 
   const snapshotMap = new Map<string, { title: string, snapshotName: string }>();
-  for (const snapshot of actionEntry?.metadata.snapshots || [])
+  for (const snapshot of action?.metadata.snapshots || [])
     snapshotMap.set(snapshot.title, snapshot);
   const actionSnapshot = snapshotMap.get('action') || snapshotMap.get('after');
   const snapshots = [actionSnapshot ? { ...actionSnapshot, title: 'action' } : undefined, snapshotMap.get('before'), snapshotMap.get('after')].filter(Boolean) as { title: string, snapshotName: string }[];
@@ -44,12 +44,12 @@ export const SnapshotTab: React.FunctionComponent<{
       return;
     let snapshotUri = undefined;
     let point: Point | undefined = undefined;
-    if (actionEntry) {
+    if (action) {
       const snapshot = snapshots[snapshotIndex];
       if (snapshot && snapshot.snapshotName) {
-        snapshotUri = `${actionEntry.metadata.pageId}?name=${snapshot.snapshotName}`;
+        snapshotUri = `${action.metadata.pageId}?name=${snapshot.snapshotName}`;
         if (snapshot.snapshotName.includes('action'))
-          point = actionEntry.metadata.point;
+          point = action.metadata.point;
       }
     }
     const snapshotUrl = snapshotUri ? `${window.location.origin}/snapshot/${snapshotUri}` : 'data:text/html,<body style="background: #ddd"></body>';
@@ -57,7 +57,7 @@ export const SnapshotTab: React.FunctionComponent<{
       (iframeRef.current.contentWindow as any).showSnapshot(snapshotUrl, { point });
     } catch (e) {
     }
-  }, [actionEntry, snapshotIndex]);
+  }, [action, snapshotIndex]);
 
   const scale = Math.min(measure.width / snapshotSize.width, measure.height / snapshotSize.height);
   const scaledSize = {
diff --git a/src/web/traceViewer/ui/sourceTab.tsx b/src/web/traceViewer/ui/sourceTab.tsx
index cf766e1b10..d9d372a957 100644
--- a/src/web/traceViewer/ui/sourceTab.tsx
+++ b/src/web/traceViewer/ui/sourceTab.tsx
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import { ActionEntry } from '../../../server/trace/viewer/traceModel';
 import * as React from 'react';
 import { useAsyncMemo } from './helpers';
 import './sourceTab.css';
@@ -23,6 +22,7 @@ import { StackFrame } from '../../../common/types';
 import { Source as SourceView } from '../../components/source';
 import { StackTraceView } from './stackTrace';
 import { SplitView } from '../../components/splitView';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
 
 type StackInfo = string | {
   frames: StackFrame[];
@@ -30,22 +30,22 @@ type StackInfo = string | {
 };
 
 export const SourceTab: React.FunctionComponent<{
-  actionEntry: ActionEntry | undefined,
-}> = ({ actionEntry }) => {
-  const [lastAction, setLastAction] = React.useState<ActionEntry | undefined>();
+  action: ActionTraceEvent | undefined,
+}> = ({ action }) => {
+  const [lastAction, setLastAction] = React.useState<ActionTraceEvent | undefined>();
   const [selectedFrame, setSelectedFrame] = React.useState<number>(0);
   const [needReveal, setNeedReveal] = React.useState<boolean>(false);
 
-  if (lastAction !== actionEntry) {
-    setLastAction(actionEntry);
+  if (lastAction !== action) {
+    setLastAction(action);
     setSelectedFrame(0);
     setNeedReveal(true);
   }
 
   const stackInfo = React.useMemo<StackInfo>(() => {
-    if (!actionEntry)
+    if (!action)
       return '';
-    const { metadata } = actionEntry;
+    const { metadata } = action;
     if (!metadata.stack)
       return '';
     const frames = metadata.stack;
@@ -53,7 +53,7 @@ export const SourceTab: React.FunctionComponent<{
       frames,
       fileContent: new Map(),
     };
-  }, [actionEntry]);
+  }, [action]);
 
   const content = useAsyncMemo<string>(async () => {
     let value: string;
@@ -80,6 +80,6 @@ export const SourceTab: React.FunctionComponent<{
 
   return <SplitView sidebarSize={100} orientation='vertical'>
     <SourceView text={content} language='javascript' highlight={[{ line: targetLine, type: 'running' }]} revealLine={targetLine}></SourceView>
-    <StackTraceView actionEntry={actionEntry} selectedFrame={selectedFrame} setSelectedFrame={setSelectedFrame}></StackTraceView>
+    <StackTraceView action={action} selectedFrame={selectedFrame} setSelectedFrame={setSelectedFrame}></StackTraceView>
   </SplitView>;
 };
diff --git a/src/web/traceViewer/ui/stackTrace.tsx b/src/web/traceViewer/ui/stackTrace.tsx
index e2273f1b61..bda6b0294f 100644
--- a/src/web/traceViewer/ui/stackTrace.tsx
+++ b/src/web/traceViewer/ui/stackTrace.tsx
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-import { ActionEntry } from '../../../server/trace/viewer/traceModel';
 import * as React from 'react';
 import './stackTrace.css';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
 
 export const StackTraceView: React.FunctionComponent<{
-  actionEntry: ActionEntry | undefined,
+  action: ActionTraceEvent | undefined,
   selectedFrame: number,
   setSelectedFrame: (index: number) => void
-}> = ({ actionEntry, setSelectedFrame, selectedFrame }) => {
-  const frames = actionEntry?.metadata.stack || [];
+}> = ({ action, setSelectedFrame, selectedFrame }) => {
+  const frames = action?.metadata.stack || [];
   return <div className='stack-trace'>{
     frames.map((frame, index) => {
       return <div
diff --git a/src/web/traceViewer/ui/timeline.css b/src/web/traceViewer/ui/timeline.css
index 101231535c..c64e1ab252 100644
--- a/src/web/traceViewer/ui/timeline.css
+++ b/src/web/traceViewer/ui/timeline.css
@@ -71,10 +71,9 @@
   position: absolute;
   height: 9px;
   top: 11px;
-  background-color: red;
   border-radius: 2px;
   min-width: 3px;
-  --action-color: 'transparent';
+  --action-color: gray;
   background-color: var(--action-color);
 }
 
@@ -83,46 +82,54 @@
   box-shadow: 0 0 0 1px var(--action-color);
 }
 
-.timeline-bar.click,
-.timeline-bar.dblclick,
-.timeline-bar.hover,
-.timeline-bar.check,
-.timeline-bar.uncheck,
-.timeline-bar.tap {
+.timeline-bar.frame_click,
+.timeline-bar.frame_dblclick,
+.timeline-bar.frame_hover,
+.timeline-bar.frame_check,
+.timeline-bar.frame_uncheck,
+.timeline-bar.frame_tap {
   --action-color: var(--green);
 }
 
-.timeline-bar.fill,
-.timeline-bar.press,
-.timeline-bar.type,
-.timeline-bar.selectOption,
-.timeline-bar.setInputFiles {
+.timeline-bar.page_load,
+.timeline-bar.page_domcontentloaded,
+.timeline-bar.frame_fill,
+.timeline-bar.frame_press,
+.timeline-bar.frame_type,
+.timeline-bar.frame_selectoption,
+.timeline-bar.frame_setinputfiles {
   --action-color: var(--orange);
 }
 
-.timeline-bar.goto,
-.timeline-bar.setContent,
-.timeline-bar.goBack,
-.timeline-bar.goForward,
+.timeline-bar.frame_loadstate {
+  display: none;
+}
+
+.timeline-bar.frame_goto,
+.timeline-bar.frame_setcontent,
+.timeline-bar.frame_goback,
+.timeline-bar.frame_goforward,
 .timeline-bar.reload {
   --action-color: var(--blue);
 }
 
-.timeline-bar.evaluateExpression {
+.timeline-bar.frame_evaluateexpression {
   --action-color: var(--yellow);
 }
 
-.timeline-bar.dialog {
-  top: 22px;
+.timeline-bar.frame_dialog {
   --action-color: var(--transparent-blue);
 }
 
-.timeline-bar.navigation {
-  top: 22px;
+.timeline-bar.frame_navigated {
   --action-color: var(--blue);
 }
 
-.timeline-bar.waitForEventInfo {
+.timeline-bar.event {
+  top: 22px;
+}
+
+.timeline-bar.frame_waitforeventinfo {
   bottom: inherit;
   top: 0;
   --action-color: var(--gray);
diff --git a/src/web/traceViewer/ui/timeline.tsx b/src/web/traceViewer/ui/timeline.tsx
index c353ede53b..376c79ff04 100644
--- a/src/web/traceViewer/ui/timeline.tsx
+++ b/src/web/traceViewer/ui/timeline.tsx
@@ -15,7 +15,8 @@
   limitations under the License.
 */
 
-import { ContextEntry, InterestingPageEvent, ActionEntry, trace } from '../../../server/trace/viewer/traceModel';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
+import { ContextEntry } from '../../../server/trace/viewer/traceModel';
 import './timeline.css';
 import { Boundaries } from '../geometry';
 import * as React from 'react';
@@ -24,24 +25,24 @@ import { msToString } from '../../uiUtils';
 import { FilmStrip } from './filmStrip';
 
 type TimelineBar = {
-  entry?: ActionEntry;
-  event?: InterestingPageEvent;
+  action?: ActionTraceEvent;
+  event?: ActionTraceEvent;
   leftPosition: number;
   rightPosition: number;
   leftTime: number;
   rightTime: number;
   type: string;
   label: string;
-  priority: number;
+  className: string;
 };
 
 export const Timeline: React.FunctionComponent<{
   context: ContextEntry,
   boundaries: Boundaries,
-  selectedAction: ActionEntry | undefined,
-  highlightedAction: ActionEntry | undefined,
-  onSelected: (action: ActionEntry) => void,
-  onHighlighted: (action: ActionEntry | undefined) => void,
+  selectedAction: ActionTraceEvent | undefined,
+  highlightedAction: ActionTraceEvent | undefined,
+  onSelected: (action: ActionTraceEvent) => void,
+  onHighlighted: (action: ActionTraceEvent | undefined) => void,
 }> = ({ context, boundaries, selectedAction, highlightedAction, onSelected, onHighlighted }) => {
   const [measure, ref] = useMeasure<HTMLDivElement>();
   const [previewPoint, setPreviewPoint] = React.useState<{ x: number, clientY: number } | undefined>();
@@ -61,64 +62,36 @@ export const Timeline: React.FunctionComponent<{
         if (entry.metadata.method === 'goto')
           detail = entry.metadata.params.url || '';
         bars.push({
-          entry,
+          action: entry,
           leftTime: entry.metadata.startTime,
           rightTime: entry.metadata.endTime,
           leftPosition: timeToPosition(measure.width, boundaries, entry.metadata.startTime),
           rightPosition: timeToPosition(measure.width, boundaries, entry.metadata.endTime),
           label: entry.metadata.apiName + ' ' + detail,
-          type: entry.metadata.method,
-          priority: 0,
+          type: entry.metadata.type + '.' + entry.metadata.method,
+          className: `${entry.metadata.type}_${entry.metadata.method}`.toLowerCase()
         });
       }
-      let lastDialogOpened: trace.DialogOpenedEvent | undefined;
-      for (const event of page.interestingEvents) {
-        if (event.type === 'dialog-opened') {
-          lastDialogOpened = event;
-          continue;
-        }
-        if (event.type === 'dialog-closed' && lastDialogOpened) {
-          bars.push({
-            event,
-            leftTime: lastDialogOpened.timestamp,
-            rightTime: event.timestamp,
-            leftPosition: timeToPosition(measure.width, boundaries, lastDialogOpened.timestamp),
-            rightPosition: timeToPosition(measure.width, boundaries, event.timestamp),
-            label: lastDialogOpened.message ? `${event.dialogType} "${lastDialogOpened.message}"` : event.dialogType,
-            type: 'dialog',
-            priority: -1,
-          });
-        } else if (event.type === 'navigation') {
-          bars.push({
-            event,
-            leftTime: event.timestamp,
-            rightTime: event.timestamp,
-            leftPosition: timeToPosition(measure.width, boundaries, event.timestamp),
-            rightPosition: timeToPosition(measure.width, boundaries, event.timestamp),
-            label: `navigated to ${event.url}`,
-            type: event.type,
-            priority: 1,
-          });
-        } else if (event.type === 'load') {
-          bars.push({
-            event,
-            leftTime: event.timestamp,
-            rightTime: event.timestamp,
-            leftPosition: timeToPosition(measure.width, boundaries, event.timestamp),
-            rightPosition: timeToPosition(measure.width, boundaries, event.timestamp),
-            label: `load`,
-            type: event.type,
-            priority: 1,
-          });
-        }
+
+      for (const event of page.events) {
+        const startTime = event.metadata.startTime;
+        bars.push({
+          event,
+          leftTime: startTime,
+          rightTime: startTime,
+          leftPosition: timeToPosition(measure.width, boundaries, startTime),
+          rightPosition: timeToPosition(measure.width, boundaries, startTime),
+          label: event.metadata.method,
+          type: event.metadata.type + '.' + event.metadata.method,
+          className: `${event.metadata.type}_${event.metadata.method}`.toLowerCase()
+        });
       }
     }
-    bars.sort((a, b) => a.priority - b.priority);
     return bars;
   }, [context, boundaries, measure.width]);
 
   const hoveredBar = hoveredBarIndex !== undefined ? bars[hoveredBarIndex] : undefined;
-  let targetBar: TimelineBar | undefined = bars.find(bar => bar.entry === (highlightedAction || selectedAction));
+  let targetBar: TimelineBar | undefined = bars.find(bar => bar.action === (highlightedAction || selectedAction));
   targetBar = hoveredBar || targetBar;
 
   const findHoveredBarIndex = (x: number) => {
@@ -150,7 +123,7 @@ export const Timeline: React.FunctionComponent<{
     setPreviewPoint({ x, clientY: event.clientY });
     setHoveredBarIndex(index);
     if (typeof index === 'number')
-      onHighlighted(bars[index].entry);
+      onHighlighted(bars[index].action);
   };
 
   const onMouseLeave = () => {
@@ -167,7 +140,7 @@ export const Timeline: React.FunctionComponent<{
     const index = findHoveredBarIndex(x);
     if (index === undefined)
       return;
-    const entry = bars[index].entry;
+    const entry = bars[index].action;
     if (entry)
       onSelected(entry);
   };
@@ -183,7 +156,7 @@ export const Timeline: React.FunctionComponent<{
     <div className='timeline-lane timeline-labels'>{
       bars.map((bar, index) => {
         return <div key={index}
-          className={'timeline-label ' + bar.type + (targetBar === bar ? ' selected' : '')}
+          className={'timeline-label ' + bar.className + (targetBar === bar ? ' selected' : '')}
           style={{
             left: bar.leftPosition + 'px',
             width: Math.max(1, bar.rightPosition - bar.leftPosition) + 'px',
@@ -196,7 +169,7 @@ export const Timeline: React.FunctionComponent<{
     <div className='timeline-lane timeline-bars'>{
       bars.map((bar, index) => {
         return <div key={index}
-          className={'timeline-bar ' + bar.type + (targetBar === bar ? ' selected' : '')}
+          className={'timeline-bar ' + (bar.action ? 'action ' : '') + (bar.event ? 'event ' : '') + bar.className + (targetBar === bar ? ' selected' : '')}
           style={{
             left: bar.leftPosition + 'px',
             width: Math.max(1, bar.rightPosition - bar.leftPosition) + 'px',
diff --git a/src/web/traceViewer/ui/workbench.tsx b/src/web/traceViewer/ui/workbench.tsx
index dd7b385df4..a3e480f34a 100644
--- a/src/web/traceViewer/ui/workbench.tsx
+++ b/src/web/traceViewer/ui/workbench.tsx
@@ -14,7 +14,8 @@
   limitations under the License.
 */
 
-import { ActionEntry, ContextEntry } from '../../../server/trace/viewer/traceModel';
+import { ActionTraceEvent } from '../../../server/trace/common/traceEvents';
+import { ContextEntry } from '../../../server/trace/viewer/traceModel';
 import { ActionList } from './actionList';
 import { TabbedPane } from './tabbedPane';
 import { Timeline } from './timeline';
@@ -33,20 +34,21 @@ export const Workbench: React.FunctionComponent<{
   debugNames: string[],
 }> = ({ debugNames }) => {
   const [debugName, setDebugName] = React.useState(debugNames[0]);
-  const [selectedAction, setSelectedAction] = React.useState<ActionEntry | undefined>();
-  const [highlightedAction, setHighlightedAction] = React.useState<ActionEntry | undefined>();
+  const [selectedAction, setSelectedAction] = React.useState<ActionTraceEvent | undefined>();
+  const [highlightedAction, setHighlightedAction] = React.useState<ActionTraceEvent | undefined>();
 
   let context = useAsyncMemo(async () => {
     return (await fetch(`/context/${debugName}`).then(response => response.json())) as ContextEntry;
   }, [debugName], emptyContext);
 
-  const actions = React.useMemo(() => {
-    const actions: ActionEntry[] = [];
+  const { actions, nextAction } = React.useMemo(() => {
+    const actions: ActionTraceEvent[] = [];
     for (const page of context.pages)
       actions.push(...page.actions);
     actions.sort((a, b) => a.timestamp - b.timestamp);
-    return actions;
-  }, [context]);
+    const nextAction = selectedAction ? actions[actions.indexOf(selectedAction) + 1] : undefined;
+    return { actions, nextAction };
+  }, [context, selectedAction]);
 
   const snapshotSize = context.created.viewportSize || { width: 1280, height: 720 };
   const boundaries = { minimum: context.startTime, maximum: context.endTime };
@@ -77,11 +79,11 @@ export const Workbench: React.FunctionComponent<{
     </div>
     <SplitView sidebarSize={300} orientation='horizontal' sidebarIsFirst={true}>
       <SplitView sidebarSize={300} orientation='horizontal'>
-        <SnapshotTab actionEntry={selectedAction} snapshotSize={snapshotSize} />
+        <SnapshotTab action={selectedAction} snapshotSize={snapshotSize} />
         <TabbedPane tabs={[
-          { id: 'logs', title: 'Log', render: () => <LogsTab actionEntry={selectedAction} /> },
-          { id: 'source', title: 'Source', render: () => <SourceTab actionEntry={selectedAction} /> },
-          { id: 'network', title: 'Network', render: () => <NetworkTab actionEntry={selectedAction} /> },
+          { id: 'logs', title: 'Log', render: () => <LogsTab action={selectedAction} /> },
+          { id: 'source', title: 'Source', render: () => <SourceTab action={selectedAction} /> },
+          { id: 'network', title: 'Network', render: () => <NetworkTab context={context} action={selectedAction} nextAction={nextAction}/> },
         ]}/>
       </SplitView>
       <ActionList
@@ -110,5 +112,6 @@ const emptyContext: ContextEntry = {
     viewportSize: { width: 1280, height: 800 },
     debugName: '<empty>',
   },
-  pages: []
+  pages: [],
+  resources: []
 };
diff --git a/utils/check_deps.js b/utils/check_deps.js
index 53fb915b0b..3b12c67d01 100644
--- a/utils/check_deps.js
+++ b/utils/check_deps.js
@@ -147,7 +147,7 @@ DEPS['src/cli/driver.ts'] = DEPS['src/inprocess.ts'] = DEPS['src/browserServerIm
 // Tracing is a client/server plugin, nothing should depend on it.
 DEPS['src/web/recorder/'] = ['src/common/', 'src/web/', 'src/web/components/', 'src/server/supplements/recorder/recorderTypes.ts'];
 DEPS['src/web/traceViewer/'] = ['src/common/', 'src/web/'];
-DEPS['src/web/traceViewer/ui/'] = ['src/common/', 'src/web/traceViewer/', 'src/web/', 'src/server/trace/viewer/', 'src/server/trace/', 'src/server/trace/common/', 'src/server/snapshot/snapshotTypes.ts'];
+DEPS['src/web/traceViewer/ui/'] = ['src/common/', 'src/web/traceViewer/', 'src/web/', 'src/server/trace/viewer/', 'src/server/trace/', 'src/server/trace/common/', 'src/server/snapshot/snapshotTypes.ts', 'src/protocol/channels.ts'];
 // The service is a cross-cutting feature, and so it depends on a bunch of things.
 DEPS['src/remote/'] = ['src/client/', 'src/debug/', 'src/dispatchers/', 'src/server/', 'src/server/supplements/', 'src/server/electron/', 'src/server/trace/'];