How to suspend several TChromium browsers without closing?

[Svt]

Hello! Happy New Year!

I have a problem:

I have a project based on the Tabbedbrowser sample.
I need to open a lot of pages.
But when 20-30 pages opened, they are slowing down if I trying to work with one of them, all operations processing very slow.
How can I to suspend all other pages when I want to interact with one page?
My idea is:
1. I have 20 pages opened.
2. I need to enter page 7 and work with it
3. I suspend pages 1-6 and 8-20 so they are not refreshing, scripts not working, etc.
4. I do something with page 7 and end my task
5. I resume pages 1-6 and 8-20, and all pages continue working normally.

How can I do this?
Please help if you can.

[salvadordf]

Hi,

Try setting the TCEFWindowParent.Visible property of each hidden page to False. Also try pausing videos in hidden tabs.

[Svt]

No, it does nothing.
I need to disable scripts on the page.
Try to open page: https://www.mexc.com/exchange/BTC_USDT
You will see MEXC cryptoexchange with a lot of data on the page
This page always send requests to the server to autoupdate data

--------------------------------------------------------------------
I wrote OnBeforeLoadResource handler: (write page requests to SL (TStringList))

procedure TF_Main.Chromium_OnBeforeResourceLoad(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame;
const request: ICefRequest; const callback: ICefRequestCallback;
out Result: TCefReturnValue);
var
s,ref: string;
begin
s:= request.Url;
ref:= request.ReferrerUrl;
if fLogWrite then
SL_Log.Add(TimeToStr(Now)+': '+s+' / ’+ref);
end;

-------------------------------------------------------------
This is the part of a log generated by this handler:

8:07:20: https://www.mexc.com/api/common/config/sites / https://www.mexc.com/exchange/BTC_USDT
8:07:21: https://trochi.gotoda.co/api /
8:07:21: https://trochi.gotoda.co/api /
8:07:24: https://www.mexc.com/api/common/ping / https://www.mexc.com/exchange/BTC_USDT
8:07:25: https://www.mexc.com/exploration/explorationNoCache.json / https://www.mexc.com/exchange/BTC_USDT
8:07:25: https://www.mexc.com/exploration/exploration.json / https://www.mexc.com/exchange/BTC_USDT
8:07:26: https://trochi.gotoda.co/api /
8:07:30: https://opt.mocortech.com/maintenance/events.json / https://www.mexc.com/exchange/BTC_USDT
8:07:33: https://www.mexc.com/api/common/ping / https://www.mexc.com/exchange/BTC_USDT
8:07:34: https://trochi.gotoda.co/api /
8:07:34: https://trochi.gotoda.co/api /
8:07:35: https://www.mexc.com/api/common/ping / https://www.mexc.com/exchange/BTC_USDT
8:07:35: https://www.mexc.com/exploration/explorationNoCache.json / https://www.mexc.com/exchange/BTC_USDT
8:07:36: https://trochi.gotoda.co/api /
8:07:36: https://www.mexc.com/exploration/exploration.json / https://www.mexc.com/exchange/BTC_USDT
8:07:37: https://trochi.gotoda.co/api /
-----------------------------------------------------------

How to disable these requests to prevent page data autoupdate?
Not to set RV_Cancel in this handler for these requests, but how to make to page would send no requests?
And how to enable sending these requests later to enable data autoupdate again?

[salvadordf]

CEF doesn't have TrySuspend/Resume like WebView2 but the CEF project maintainer also recommends using the off-screen rendering mode and calling WasHidden(true).
https://www.magpcss.org/ceforum/viewtopic.php?f=6&t=17737

You can try this with the TabbedOSRBrowser demo.