No message on install with drag and drop

[brianteeman]

When you install an extension using the browser and upload you get a success message - see screenshot below

When you install using drag and drop you get no feedback that the extension has been installed

[AlexRed]

I can confirm the problem on Joomla! 3.7.0-beta4 (nightly Build)

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[ghazal]

Problem confirmed.
I do admit that it is a bit unsettling.

[infograf768]

It also could be the same issue for eventual errors as these are in the install.php code

@asika32764
could you please look into this?

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[asika32764]

I guess it is the message session issue since new drag n drop installation use ajax instead form submit.

I will take a look to the code later.

[asika32764]

Fixed in #15135

[brianteeman]

Closed as we have a PR