I am getting the error while running npm run dev for nextjs project. The live host or local host for IDX is not opening and showing this error: [image]

@all, this issue seems to be caused by cookies. Please try these two options: Open your IDX account in a different browser. Clear your cookies, log out of IDX, and then log back in. Alternatively, you can make the live URL or port public. This will resolve the issue, as the preview site won’t nee…

Make my port public solves the issue. just clicking on lock icon. :nerd_face: [image]

Hi! Just noting that making my port public (and visiting on different devices than the one running IDX) did not solve it for me. I am seeing “Unable to decode current host” on my other devices, so the port does appear to be publicly accessible, just displaying the same error message. Is there anyth…

I have the same problem with angular, i run ng serve and when i try to open the preview is the same message Unable to decode current host I try to delete the cookies, sign out and sign in again but the problem isn’t solve, heeeelp

So, making port public did solve the issue but this wasn’t required before. Also, I noticed around the same time a second port being added while being nowhere in my dev.nix config file: [ports] Port 3000 is the one configured, but where does this 6001 port come from? Could this be related someho…

On macOS 15.3 (24D60), I have discovered that utilizing Cloudflare Warp or a VPN software can resolve the issue.

[image] Where is this configuration option, inside the IDX environment or other? [Edit] Just found it. Here it is for the people who needs…It solved the issue for me too. Thanks!! [idx]

Tried everything here and no success.

Same here… its still not fixed… I hope it gets fixed soon…

Same here. Going back to Github Codespaces :expressionless:

[image] immachakata: Same here. Going back to … Yes, this is nearing the “it just doesn’t work” phase. Changing the security on the preview page is not a real solution. And I have deleted all of my cookies here on Vimium. All of my google and cloudworkstations.dev cookies. Signed out. Closed …

Live preview not working

General

Alex February 11, 2025, 9:33pm 37

Hi folks, we believe the fix was rolled out. Please let us know if anyone still experiences this.

Maybe it’s time to retire Project IDX?

Topic		Replies	Views
Web preview issue Previews	7	434	April 17, 2025
Unable to view view preview General	16	1870	July 24, 2024
Unable to decode current host General	1	584	February 1, 2025
Preview not working, infinite loop Previews	3	877	October 12, 2024
ERR_TOO_MANY_REDIRECTS Issue General	13	1428	March 12, 2026

Live preview not working

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