Unhandled error “Cannot find context with specified id” using Robot framework

问题

I have a problem when working with iframe using Robot framework and Selenium2Library. It throws error:

WebDriverException: Message: unknown error: unhandled inspector error: {"code":-
32000,"message":"Cannot find context with specified id"}
(Session info: chrome=55.0.2883.87)
  (Driver info: chromedriver=2.25.426923 (0390b88869384d6eb0d5d09729679f934aab9eed),platform=Windows NT 6.1.7601 SP1 x86_64)

My test code is:

Fill In Description ${description}
    Wait Until Element Is Visible    ${FRAME}    40
    Select Frame    ${FRAME}
    wait until page contains element  ${IFRAME BODY}
    Click Element    ${IFRAME BODY}
    wait until page contains element  ${IFRAME BODY}
    Clear Element Text    ${IFRAME BODY}
    wait until page contains element  ${IFRAME BODY}
    Input Text    ${IFRAME BODY}     ${description}
    Unselect Frame

It fails in step Input Text ${IFRAME BODY} ${description}

Btw I reuse this keyword for more pages where this iframe occurs but it fails only in once exact case - but the html code is the same for all the iframes, so really dont understand why it works just sometimes..

Will be glad for any help.

回答1:

This issue seems to be reemerging in chromedriver, latest one being: https://bugs.chromium.org/p/chromedriver/issues/detail?id=2198

According to this ticket can be fixed in two ways:

switch to chromedriver version which does not have this issue
add wait after switching to frame

回答2:

So I had to change the code like this to work in other frame:

Log comment ${comment}
   wait until element is visible    ${RICH TEXT AREA}    40
   sleep   1
   click element    ${RICH TEXT AREA}
   Wait Until Element Is Visible    ${FRAME}    40
   Select Frame    ${FRAME}
   wait until element is visible    ${IFRAME BODY}   20
   input text   ${IFRAME BODY}   ${comment}
   Unselect Frame

${IFRAME BODY} is still //body in Iframe and surprisingly it inputs the text all the time now... And unfortunately it does not work without sleep :( But with sleep it works..

来源：https://stackoverflow.com/questions/41429723/unhandled-error-cannot-find-context-with-specified-id-using-robot-framework

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selenium

selenium-webdriver

automated-tests

robotframework

selenium2library