New headless mode not working

Robot Framework
1

I being trying to use the new headless mode for Google Chrome but I don’t know what I maybe be doing wrong.

This is my suite_setup.robot

*** Settings ***
Library             SeleniumLibrary
Library             String
Library             Collections
Library             OperatingSystem
Library             DateTime
Library             FakerLibrary  locale=pt_BR

*** Variables ***
${HEADLESS}=  ${HEADLESS}
${TEARDOWN}=  True
${URL}=  ${URL}
${FAST_TIMEOUT}=  5
${TIMEOUT}=  30
${LONG_TIMEOUT}=  60
${HARD_TIMEOUT}=  90

*** Keywords ***

Open Chrome
    ${CHROME_OPTIONS}=  Evaluate  selenium.webdriver.ChromeOptions()
    Call Method    ${CHROME_OPTIONS}    add_argument    --incognito    
    Call Method    ${CHROME_OPTIONS}    add_argument    --disable-notifications   
    Call Method    ${CHROME_OPTIONS}    add_argument    --new-window   
    Call Method    ${CHROME_OPTIONS}    add_argument    --aggressive-cache-discard        
    Call Method    ${CHROME_OPTIONS}    add_argument    --disable-application-cache  
    Call Method    ${CHROME_OPTIONS}    add_argument    --disable-dev-shm-usage
    Call Method    ${CHROME_OPTIONS}    add_argument    --no-sandbox
    Call Method    ${CHROME_OPTIONS}    add_argument    --disable-gpu
    Call Method    ${CHROME_OPTIONS}    add_argument    --mute-audio
    Call Method    ${CHROME_OPTIONS}    add_argument    --start-maximized
    Run Keyword If  ${HEADLESS}==True   With Headless     ${CHROME_OPTIONS}
    Run Keyword If  ${HEADLESS}==False  Without Headless  ${CHROME_OPTIONS}

With Headless
    [Arguments]  ${CHROME_OPTIONS}
    Call Method    ${CHROME_OPTIONS}    add_argument    --headless=new
    Open Browser    ${URL}    chrome    options=${CHROME_OPTIONS}
    Set Window Size    1920    1080

Without Headless
    [Arguments]  ${CHROME_OPTIONS}
    Open Browser    ${URL}    chrome   options=${CHROME_OPTIONS}

As soon I run the following command robot -d ./results -v HEADLESS:True ./Cases I get this error in the terminal: Calling method 'add_argument' failed: TypeError: ArgOptions.add_argument() got an unexpected keyword argument '--headless'.

This is my requirements I’m using:

Faker==4.16.0
python-dateutil==2.8.1
robotframework==6.0.2
robotframework-faker==5.0.0
robotframework-pabot==2.15.0
robotframework-pythonlibcore==4.1.2
robotframework-seleniumlibrary==6.1.0
selenium==4.9.0
six==1.12.0
text-unidecode==1.3
urllib3==1.26.10
wrapt==1.12.1
qase-robotframework==1.1.1
2

As far I as know the new headless mode is very easy to use. For example in the below test:

*** Settings ***
Library           SeleniumLibrary

*** Test Cases ***
Testing  Headless Chrome
    Open Browser    https://robotframework.org/    headlesschrome
    Sleep    5 seconds
    Capture Page Screenshot
    Close Browser
3

@HelioGuilherme66 I saw this option in the selenium documentation but I thought it still use the old headless mode. I was trying using the parameter headless=new because it is in the Google documentation.

4

OK, but the RF community always try to make things simpler :slight_smile:

5

I have not been able to get the new functionality from Google to work with robot framework. That is using headlesschrome argument or headless=new. And with the new drivers from chrome the headlesschrome does not longer seem to work as they did a couple of months back.
I’m probably just confused on what to use as of right now and hopefully I will get some clarity here at this forum in the future.

6

We started using headlesschrome here but the problems we had with the “normal” were still happening. For now, we have 6-7 test cases running with Firefox. For some reason, the headless firefox works in some way different than chrome.