Marketplace does not sync: Invalid response line returned from server: HTTP/2 200 + Infinite Loop

[3615helloworld]

Hi All, I hope you will be able to help me

Preconditions (*)

1. fresh install of Magento ver. 2.1.15

Steps to reproduce (*)

1. I try to sync to the Marketplace for the first time

Expected result (*)

1. To Log in the Marketplace

Actual result (*)

1. https://digital-seb-p-.tinytake.com/sf/MzA5ODcxM185Mjg5NDU1
2. Invalid response line returned from server: HTTP/2 200

I have tried to following fixes: https://magento.stackexchange.com/questions/249565/unable-to-synch-with-marketplace-after-upgrade-to-2-2-6

or

https://github.com/magento/magento2/issues/19127

and

https://community.magento.com/t5/Magento-2-x-Version-Upgrades/Sign-in-to-Magento-Marketplace-gt-quot-Invalid-response-line/td-p/111720

I don't receive the error message but the loading is stuck in an infinite loop and never connect https://digital-seb-p-.tinytake.com/sf/MzEwMTUyMF85Mjk2Nzky

[magento-engcom-team]

Hi @Magentococo. Thank you for your report. To help us process this issue please make sure that you provided the following information:

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@Magentococo do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• [ ] yes
• [ ] no

[magento-engcom-team]

Hi @engcom-backlog-nazar. Thank you for working on this issue. In order to make sure that issue has enough information and ready for development, please read and check the following instruction: :point_down:

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[ghost]

Hi @Magentococo thank you for you report, this issue has been fixed by this commit -> https://github.com/magento/magento2/pull/19143