Gutenberg: Gutenberg will not upload images

[MindfulTrader-Jeff]

Describe the bug
When I am using the Gutenberg page editor and try to upload an image, it will not load. I get an error message.

To Reproduce
Here's a screencast video of the problem:

https://www.screencast.com/t/B32tdZSN

Expected behavior
I would expect wordpress to upload the file and show me my other files that have already been uploaded to my Media Library (they are not visible when I open the library, but I can see them on my web pages)

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Browser: Chrome
• Version: Version 68.0.3440.106 (Official Build) (64-bit)

[onliniak]

Arch Linux 4.18.1
Firefox 61.0.2
Gutenberg 3.6.2
Wordpress 5.0-alpha-43572

Cannot reproduce with https://static1.squarespace.com/static/54823afbe4b023af78555735/t/54e3dfe3e4b04edd584762b4/1424220131955/Darbee4k-stream_hd100.png

[designsimply]

I tested uploading a .png file into a post using WordPress 4.9.8 and Gutenberg 3.6.2 and it worked in my test.

How was your trello_project_management_software_001.png file created? Is it definitely a .png time or could it have been renamed?

Are you able to try testing with the example file from the comment above?

[MindfulTrader-Jeff]

Sheri,

It must have had something to do with the file creation. I created it on
Clipular, from a screen shot.

Your image uploaded perfectly well.

Jeffrey

[designsimply]

🤔 strange! Does the problem happen with every screenshot you take with Clipular or was trello_project_management_software_001.png the only file with the problem?

Aside: I tested taking a screenshot using the demo option at https://www.clipular.com/welcome and then clicking the "Get Started" button and right-clicking on the image to save it—when I uploaded that test image to a Gutenberg post, it worked without error in my test. I used WordPress 4.9.8 and Gutenberg 3.6.2 and Chrome 68.0.3440.106 on macOS 10.13.6 for testing.

[MindfulTrader-Jeff]

The day that I was having problems, it was with all images. Today
everything worked fine. I don't know what the difference was. I did
everything the same.

[zethzeth]

I have added a lot of addition information about this bug here: https://github.com/WordPress/gutenberg/issues/9142#issuecomment-416342295

[JakePT]

Seems related to this patch made in 4.9.8: https://core.trac.wordpress.org/ticket/43751

I've reported the bug here: https://core.trac.wordpress.org/ticket/44864

[tofumatt]

Looks like this issue was patched in core but we're waiting on a release. Since there's nothing else for us to do here I'm closing the issue, though it won't be fixed until the next version of WordPress ships.

[abeludoh]

Having the same issue here. Unable to upload imag both jpg and png in Wordpress 5.0 with Gutenberg editor.

[malaniraz]

Please try to upload from mozila (firefox)browser