# Chrome options --headless=new **URL:** \ **Category:** SeleniumLibrary\ **Created:** [26 July 2023 23:36 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009 "2023-07-26T23:36:19Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![wilsoft-gt](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wilsoft-gt/32/2656_2.png) [@wilsoft-gt](https://forum.robotframework.org/u/wilsoft-gt)\ **Post date:** [26 July 2023 23:36 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/1 "2023-07-26T23:36:19Z")
Hi all, I’m trying to run a test case in headless mode with an extension, after checking it is possible by calling the argument like this: –headless=new The issue is that I’m using robot like so: ${chrome\_options}= Evaluate. sys.modules[‘selenium.webdriver’].CromeOptions() sys, selenium.webdriver … Call Method ${chrome\_options}. add\_argument. --headless That works fine and robot runs in headless mode, the issue is when I try to add the “new” paraneter to the “–headless” argument like so: –headless=new The error I get is: Calling method ‘add\_argument’ failed: TypeError: ArgOptions.add\_argument() got an unexpected keyword argument ‘–headless’ Any idea how to call that argument? ---
**Author:** ![NikosKoul](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/nikoskoul/32/2512_2.png) [@NikosKoul](https://forum.robotframework.org/u/NikosKoul)\ **Post date:** [27 July 2023 08:15 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/2 "2023-07-27T08:15:06Z")
Hi Wilson, I am trying to understand what you want to do by adding the argument new. Could you please give me more details? btw this is my options for the setup and teardown: ``` ***Keywords*** Begin Web Test ${options} Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys Call Method ${options} add_argument --disable-notifications Call Method ${options} add_argument --disable-infobars Call Method ${options} add_argument --disable-extensions Call Method ${options} add_argument --no-sandbox Call Method ${options} add_argument --headless Call Method ${options} add_argument --disable-dev-shm-usage SeleniumLibrary.Open Browser ${BASE_URL} Chrome options=${options} SeleniumLibrary.Set Window Size 1920 1080 End Web Test SeleniumLibrary.Close Browser ``` ---
**Author:** ![wilsoft-gt](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wilsoft-gt/32/2656_2.png) [@wilsoft-gt](https://forum.robotframework.org/u/wilsoft-gt)\ **Post date:** [27 July 2023 15:08 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/3 "2023-07-27T15:08:52Z")
Hi @NikosKoul, my goal was to run the test in headless mode with a chrome extension as an example with salesforceinspector, without the “=new” option, there is no way to open the browser with a chrome extension in headless mode. I was able to fix this by adding the argument in this way: –headless=new Thank you for your replay. ---
**Author:** ![NikosKoul](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/nikoskoul/32/2512_2.png) [@NikosKoul](https://forum.robotframework.org/u/NikosKoul)\ **Post date:** [28 July 2023 06:21 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/4 "2023-07-28T06:21:19Z")
This is smth I didn’t know it. Perfect!!! Happy to hear that you fixed it! Have a nice day! ---
**Author:** ![kosha](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/kosha/32/2740_2.png) [@kosha](https://forum.robotframework.org/u/kosha)\ **Post date:** [31 October 2023 07:29 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/5 "2023-10-31T07:29:55Z")
> [@wilsoft-gt](#): > > –headless=new Hi, ![image](https://europe1.discourse-cdn.com/flex005/uploads/robotframework1/original/2X/3/316679bdcd6122d29d017e26dbf44cb614ced66e.png) I’m still getting the same error… Do you mind sharing how did it work for you in headless mode and did it work with jenkins? ---
**Author:** ![\_daryl](https://avatars.discourse-cdn.com/v4/letter/_/45deac/32.png) [@\_daryl](https://forum.robotframework.org/u/_daryl)\ **Post date:** [31 October 2023 11:13 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/6 "2023-10-31T11:13:52Z")
@kosha Probably because you are using a single hyphen/dash `-` not two hyphens/dashes `--` could be wrong though. Hopefully that helps from a glance (: ---
**Author:** ![wilsoft-gt](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wilsoft-gt/32/2656_2.png) [@wilsoft-gt](https://forum.robotframework.org/u/wilsoft-gt)\ **Post date:** [31 October 2023 14:27 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/8 "2023-10-31T14:27:26Z")
Hi, you need to escape the equal sign, the forum is deleting the backslash in my response: -headless/=new (Replace the forward for the backslash) In any case the forum deletes any sign sould be like this: [dash][headless][backslash][equal][new] Hope that works for you. ---
**Author:** ![kosha](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/kosha/32/2740_2.png) [@kosha](https://forum.robotframework.org/u/kosha)\ **Post date:** [2 November 2023 22:31 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/9 "2023-11-02T22:31:14Z")
Hi …it didnt work Call Method ${chrome\_options} add\_argument -headless/=new ![image](https://europe1.discourse-cdn.com/flex005/uploads/robotframework1/original/2X/8/89aa63b4f374b338ff46994d8cd53f1229d40ab4.png) ![image](https://europe1.discourse-cdn.com/flex005/uploads/robotframework1/original/2X/3/349c4c8d2d068d4d09610c8512833e445903ab2e.png) Also it returns blank page here ![image](https://europe1.discourse-cdn.com/flex005/uploads/robotframework1/original/2X/b/b9f9fa6099c0913c18ef39f034acf755ad0e97d8.png) Call Method ${chrome\_options} add\_argument -headless/ \*\*\* Variables \*\*\* ${BROWSER} headlesschrome ---
**Author:** ![wilsoft-gt](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/wilsoft-gt/32/2656_2.png) [@wilsoft-gt](https://forum.robotframework.org/u/wilsoft-gt)\ **Post date:** [2 November 2023 22:51 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/10 "2023-11-02T22:51:53Z")
My bad, the argument sould be called with double dash like the others you already have. ---
**Author:** ![swap12875](https://avatars.discourse-cdn.com/v4/letter/s/bc8723/32.png) [@swap12875](https://forum.robotframework.org/u/swap12875)\ **Post date:** [18 March 2025 15:20 UTC](https://forum.robotframework.org/t/chrome-options-headless-new/6009/11 "2025-03-18T15:20:11Z")
Hi There, BTW, I am able to fix this in my machine with this code, ``` ${headless_arg} Set Variable headless=new Call Method ${chrome options} add_argument --${headless_arg} ``` ![image](https://europe1.discourse-cdn.com/flex005/uploads/robotframework1/original/2X/9/9bfaf7c5d3cb2fa9a958cbde0be2c04c0d9fed5f.png)