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Chrome 59 has cross-platform headless support

chromestatus.com

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Re: Chrome 59 has cross-platform headless support

#151

Post by brazzledazzle »

19eightyfour wrote: post #138
brazzledazzle wrote: post #115

Earlier quoted context omitted.

I think it may accept both the underscore and hyphen and just normalizes it.

This is correct, it does accept both, and the help lists it as underscores not hyphens. So the comment about it ought to be hyphens not underscores is incorrect. Either is fine.

When I went digging through the code for v8 I believe I saw examples of it both ways. I'm not dead sure though because I don't know very much C. I just checked because I was hoping they weren't actually using an invalid flag for all that time.

Re: Chrome 59 has cross-platform headless support

#152

Post by du_bing »

It seems that Chromium 59 still can not be installed on Raspberry Pi, or anyone has done it?

It will be great to use this headless Chromium on Raspberry Pi to execute some routine web browser jobs.

Does it support the extensions installed on Chromium? Curious.

Re: Chrome 59 has cross-platform headless support

#153

Post by swah »

vvoyer wrote: post #114
kenshaw wrote: post #112

Earlier quoted context omitted.

With either Chrome in headless mode, or "headless_shell" (a minimal Chrome app part of the Chromium source tree), you first enable the remote debugging port (via --remote-debugging-port=9222), and then you can then simply browse to http://localhost:9222/ . That web page will list the various Chrome "pages" (ie, tabs) which you can then click on. Clicking on those tabs will open the Chrome DevTools inside of Chrome, a…

Thanks, also did not quite understood what exactly was headless_shell: how to run it, pro/cons, when to use it versus chrome headless.

The documentation seems to be the source at this moment: https://chromium.googlesource.com/chromium/src/+/lkgr/headle...

Its a binary that I suppose runs the Chrome in headless mode, supports some command line options like --screenshot to take screenshots, etc.

I'm having a hard time understanding why its hanging on some runs, and how --timeout and --virtual-time-budget could help me with this.

Re: Chrome 59 has cross-platform headless support

#156

Post by amclennon »

akras14 wrote: post #108
bluepnume wrote: post #10

This is fantastic. I'm using a combination of Chrome and PhantomJS for karma testing right now, for https://github.com/paypal/paypal-checkout and https://github.com/krakenjs/xcomponent . There are hundreds of tests opening up hundreds of iframes and popup windows, and sending a lot of cross-window messages, and that ends up being really memory hungry. Chrome deals pretty well with garbage collection, so long as I'm c…

I replied to you on Twitter, but for the sake of discussion, there is a third option that may be worth exploring - using Chrome running in virtualized Windows Manager - https://www.alexkras.com/running-chrome-and-other-browsers-i...

Hello, former SDC coworker!

The official Selenium Docker image uses the same technique to run headless Chrome / Firefox.

From there you can just run

  docker run -d -P selenium/standalone-chrome
and you'll get something a lot more lightweight than spinning up a new Vagrant VM.

Re: Chrome 59 has cross-platform headless support

#157

Post by shouldbworking »

tracker1 wrote: post #144
shouldbworking wrote: post #82

Earlier quoted context omitted.

It was my understanding that Google's crawler literally is Chrome. Does Google have any plans to open source those parts of the browser to make integration easier? Maybe I was mistaken

That seems unlikely... It would seem they have two sets of crawlers... one that does typical/advanced scraping, and another that runs the JS (Chromium) and takes DOM snapshots. This is reflected by changing certain properties (window title etc) and seeing them reflected in Google's search results. A couple years ago, the lag was several days to a week behind on new content via as-rendered from the server vs. via JS.

Interesting! I find it puzzling that insider knowledge on how google search works never seems to leak into the public domain. Is google killing leaks in their search algorithms or do they pay the search team such ungodly amounts of cash that nobody has ever left?

Re: Chrome 59 has cross-platform headless support

#158

Post by stcredzero »

unmole wrote: post #88
stcredzero wrote: post #56

Earlier quoted context omitted.

It's already possible. I'm using webrtc and node-electron to connect a golang server for my MMO project. I have a farm of 4 nodejs processes running under tmux acting as proxies for unreliable communications. https://www.emergencevector.com

Which WebRTC library are you using on the golang server? Last time I looked, I couldn't find anything stable.

I am using electron-webrtc. You need xvfb installed. I was able to get this running under node, but only running the processes under tmux. You will also need to install some random shared libraries Chromium needs, but which node-electron doesn't install, but these are obvious from error messages.

Then I'm using simple-peer on top of that. There's also a library for UDP communications from the node process to the golang process.

Re: Chrome 59 has cross-platform headless support

#159

Post by tracker1 »

shouldbworking wrote: post #157
tracker1 wrote: post #144

Earlier quoted context omitted.

That seems unlikely... It would seem they have two sets of crawlers... one that does typical/advanced scraping, and another that runs the JS (Chromium) and takes DOM snapshots. This is reflected by changing certain properties (window title etc) and seeing them reflected in Google's search results. A couple years ago, the lag was several days to a week behind on new content via as-rendered from the server vs. via JS.

Interesting! I find it puzzling that insider knowledge on how google search works never seems to leak into the public domain. Is google killing leaks in their search algorithms or do they pay the search team such ungodly amounts of cash that nobody has ever left?

Well, the point of their engine is to make it harder to game the system... everytime someone figures out a trick, someone takes advantage of it... that alone would discourage leaks.

We laypeople can only find out things via word of mouth or observational tests on assumptions.

Re: Chrome 59 has cross-platform headless support

#160

Post by dvallet »

llimllib wrote: post #134
dvallet wrote: post #79

Earlier quoted context omitted.

We are targeting 59. A fix for Mac OS X is on its way: https://codereview.chromium.org/2811633002

Thanks! It looks like that has been closed... is there any way to know what release # the fix is in, or when it gets released?

It'll be released in 59.0.3071.3
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