devtools-protocol | Chrome DevTools Protocol | Code Inspection library
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kandi X-RAY | devtools-protocol Summary
Chrome DevTools Protocol
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Trending Discussions on devtools-protocol
QUESTION
I'm currently using version 4.0.0-alpha5 of the Selenium Webdriver nuget package. So this code only works when the DevTools are open in Chrome Version 98, but I don't understand why. As far as I know should this always work, but the only thing that allways works is the offline state.
...ANSWER
Answered 2022-Mar-09 at 18:39 public class ChromeNetworkConditionsContext : IDisposable
{
private readonly ChromeDriver _chromeDriver;
private readonly ILogger _logger;
public ChromeNetworkConditionsContext(ChromeDriver chromeDriver, ILogger logger)
{
_chromeDriver = chromeDriver;
_logger = logger;
}
public void Dispose()
{
_logger.Information("Resetting network conditions");
_chromeDriver.NetworkConditions = new();
}
}
public IDisposable SetRequestsLatency(TimeSpan latency)
{
_log.Information($"Enabling {latency} requests latency");
var driver = _driverProvider.GetDriver();
if (driver is ChromeDriver chromeDriver)
{
chromeDriver.NetworkConditions = new()
{
Latency = latency
};
return new ChromeNetworkConditionsContext(chromeDriver, _log);
}
throw new WebDriverException($"NetworkConditions is not handled for {driver.GetType().Name}");
}
QUESTION
I realized today that you can merge Chrome DevTools Protocol
with Selenium
in order to automate some very specific parts of a process within a website.
for instance: after some initial conditions have met, automate the process of uploading some files to an account and etc...
According to the official repository you use a sentence like the following on cmd
to create a new chrome session with your user data:
ANSWER
Answered 2022-Jan-24 at 11:38Can confirm, a session opened with Chrome DevTools Protocol
somehow stores permanently the extensions you re installed. It also remembers if you used some specific credentials for logging in to some sites.
QUESTION
In DevTools-on-DevTools it's possible to run DevTools protocol commands like this:
...ANSWER
Answered 2022-Jan-09 at 08:05Judging by the source code, there are onMessageSent
and onMessageReceived
hooks:
QUESTION
I would like to evaluate JavaScript before page's document is constructed and its scripts evaluated, in essence emulating Page.addScriptToEvaluateOnNewDocument of Chrome Devtools Protocol.
I tried to evaluate the JS code on loadStarted and loadProgress events of QWebEngineView
but the script was evaluated only after page fully loaded.
ANSWER
Answered 2021-Oct-26 at 23:58You can use the QWebEngineScript to do this. It allows you to set an injection point and execution world for your script (similar to e.g. greasemonkey).
QUESTION
I want to execute cdp commands using asyncio and like the execute_cdp_cmd command in selenium and i also found the undocumented (maybe i dont have the correct documentation) endpoint url of the chrome webdriver, see here executeCdpCommand.
...ANSWER
Answered 2021-Oct-03 at 13:46I found in the java source for selenium the google chrome vendor prefix which is expect by the webdriver it is:
QUESTION
In this tutorial about using the Chromium devtools protocol from WebView2 it says the Microsoft.Web.WebView2.DevToolsProtocolExtension nuget package is necessary.
Is it still necessary (August 2021)?
The simple stuff I'm doing to interact with devtools (retrieve logs and console.*()
information) works just fine without it. And that package pulls in a whole mess of other packages, which will make my app a little heavier.
Can I safely omit the extension nuget package?
...ANSWER
Answered 2021-Aug-06 at 16:24TLDR: No you don't
The tutorial notes that to use the Chromium DevTools Protocol APIs in WebView2, you can use either:
- The CoreWebView2 CDP APIs for calling CDP methods and receiving CDP events (all supported languages)
- Or the Microsoft.Web.WebView2.DevToolsProtocolExtension nuget package (.NET only)
The nuget package is not necessary. It exists just to make things easier for you as it turns all the JSON objects into actual objects with types that you can see in IntelliSense and so on.
Instead you can directly use CoreWebView2.CallDevToolsProtocolMethod and CoreWebView2.GetDevToolsProtocolEventReceiver, parse the JSON responses yourself, and produce the JSON requests yourself.
QUESTION
I'm using WebView2 in a .net 5 WPF app and have been playing with the devtools protocol as a means of intercepting specific requests for assets. In looking at the Chrome dev docs (https://chromedevtools.github.io/devtools-protocol/), it's possible to intercept requests and then decide whether to continue them, cancel them or satisfy them yourself.
I've been able to successfully intercept the first web request (Eg. https:// www.somedomain.tld), but I've not been able to successfully continue the request (which would presumably trigger any other asset requests made as a result of the parsed html response).
After WebView initialization, I do the following (which works):
...ANSWER
Answered 2021-Mar-05 at 11:59After some more digging, I realised there were two problems. The first is that my installed version of Edge was slightly behind. The second was that my Action delegate was synchronous. The call should read:
QUESTION
I'm trying to create an app that uses the WebView2 WPF component. Currently I'm working on logging the messages and errors that are written by the javascript code of the websites using console.log()
.
This is what I have right now:
...ANSWER
Answered 2021-Feb-22 at 00:13You're close!
It turns out, you have to enable the protocol event, or it will not be called.
Just enable
it after you you have added the event listener, like this:
QUESTION
I am using selenium with python to automatically remove unused CSS code from my website.
I found a solution which seems to be good here:
https://chromedevtools.github.io/devtools-protocol/tot/CSS/
I have tried now different ways to generate the ranges json with the code I use and this seems to be promising:
...ANSWER
Answered 2021-Feb-11 at 16:15You have an extra space in "CSS.getStyleSheetText "
. The result will be a dictionary with key "text"
:
QUESTION
The goal: obtain a result of chromium command execution, e.g. Profiler report data
What I've done: I'm able to call chrome devtools command using browser.driver.sendChromiumCommand
.
E.g. await browser.driver.sendChromiumCommand('Page.reload', {})
reloads page, so I can confirm that this is working.
The problem: the result of any command execution is always null
Here is my code
...ANSWER
Answered 2020-Oct-08 at 10:35This is not a Protractor issue per se.
The problem is that underlying selenium-webdriver
for Node.js uses send_command
(which does not return result), but does not implement usage of send_command_and_get_result
.
According to response from developers it's going to be fixed in next alpha release (current one is 4.0.0-alpha.7
)
I suppose that, in order for this to work, Protractor's sendChromiumCommand
is gotta get a sendChromiumCommandAndGetResult
counterpart, once selenium-webdriver
fix is available.
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