External images have stopped working in Azure Managed Grafana on all sites. How can I get them back?

Question

External images have stopped working in Azure Managed Grafana on all sites. How can I get them back?

Richard Hanson-Graville 5

External images in Grafana dashboards have suddenly stopped working, in all instances. What has changed, and how do I enable external images again?
Where are the security settings to control which external sites are safe?

Geadas, Henrique Ricardo 0 Reputation points

2026-04-15T09:48:12.73+00:00

Hello,

I'm having the same problem.

How is it supposed to "they must be embedded directly or hosted within Grafana itself", when there is nothing on the instance configuration to do so?

Is there any documentation regarding this specific topic?

Thanks in advance.
Javier Huamani 100 Reputation points

2026-04-15T17:27:22.15+00:00

We're having the same issue and in the console found the root cause is due to the Content Security Policy (CSP), specifically this directive being violated:

img-src 'self' data: *.storyblok.com azure.microsoft.com *.basemaps.cartocdn.com tile.openstreetmap.org services.arcgisonline.com

We're hosting our images in azure blob storage. However, since we can't modify the CSP ourselves to add our storage account URI, our images are being blocked. @Siva shunmugam Nadessin is updating the CSP possible by MS to allow blobs from storage accounts? Otherwise, what alternative hosting options do we have for images?
Siva shunmugam Nadessin 9,625 Reputation points Microsoft External Staff Moderator

2026-04-15T20:48:50.9733333+00:00

Hello Richard Hanson-Graville

Just checking in to see if the solution shared above help you to resolve your issue. please reach out to us If you have any further questions.

Thanks
Kev Leho 20 Reputation points

2026-04-15T22:52:33.79+00:00

I'm having the same issue on and got a lot of images to change. All our images are on Azure blob. Siva, can you please give me more technical details on what you mean by "To display images, they must be embedded directly or hosted within Grafana itself."?
Siva shunmugam Nadessin 9,625 Reputation points Microsoft External Staff Moderator

2026-04-16T00:04:36.7833333+00:00

Kev Leho, Javier Huamani, Geadas, Henrique Ricardo,

We serve one question per customer, kindly create a seperate thread for us to serve you, we would be happy to help you.

1 answer

Your answer

Geadas, Henrique Ricardo 0 Reputation points

2026-04-15T09:48:12.73+00:00

Hello,

I'm having the same problem.

How is it supposed to "they must be embedded directly or hosted within Grafana itself", when there is nothing on the instance configuration to do so?

Is there any documentation regarding this specific topic?

Thanks in advance.
Javier Huamani 100 Reputation points

2026-04-15T17:27:22.15+00:00

We're having the same issue and in the console found the root cause is due to the Content Security Policy (CSP), specifically this directive being violated:

img-src 'self' data: *.storyblok.com azure.microsoft.com *.basemaps.cartocdn.com tile.openstreetmap.org services.arcgisonline.com

We're hosting our images in azure blob storage. However, since we can't modify the CSP ourselves to add our storage account URI, our images are being blocked. @Siva shunmugam Nadessin is updating the CSP possible by MS to allow blobs from storage accounts? Otherwise, what alternative hosting options do we have for images?
Siva shunmugam Nadessin 9,625 Reputation points Microsoft External Staff Moderator

2026-04-15T20:48:50.9733333+00:00

Hello Richard Hanson-Graville

Just checking in to see if the solution shared above help you to resolve your issue. please reach out to us If you have any further questions.

Thanks
Kev Leho 20 Reputation points

2026-04-15T22:52:33.79+00:00

I'm having the same issue on and got a lot of images to change. All our images are on Azure blob. Siva, can you please give me more technical details on what you mean by "To display images, they must be embedded directly or hosted within Grafana itself."?
Siva shunmugam Nadessin 9,625 Reputation points Microsoft External Staff Moderator

2026-04-16T00:04:36.7833333+00:00

Kev Leho, Javier Huamani, Geadas, Henrique Ricardo,

We serve one question per customer, kindly create a seperate thread for us to serve you, we would be happy to help you.

Answer 1

Hello Richard Hanson-Graville,

External images stopped working because Azure Managed Grafana recently enforced stricter security policies that block all externally hosted content. This is a Microsoft‑controlled change and external image allowlists are not supported in the managed service. To display images, they must be embedded directly or hosted within Grafana itself.

The Supported options is as below.

Embed the image directly (recommended)
- Convert the image to Base64
- Add a Text panel → set Mode = HTML
- Insert the image using a Base64 data URL
- This works because embedded images are allowed by policy.
Use Grafana built‑in visuals
- Use native Grafana panels (charts, icons, geomap, etc.) instead of image URLs.
- Built‑in assets are allowed and supported.

Not supported:

Images hosted in Azure Blob Storage, CDN, or any external website
Custom CSP or allowlist configuration

This is by design for Azure Managed Grafana and cannot be changed by customers.

Let me know if you have further questions?

References:

https://learn.microsoft.com/en-us/azure/managed-grafana/overview

https://docs.azure.cn/en-us/managed-grafana/secure-azure-managed-grafana

Siva shunmugam Nadessin 9,625 Reputation points Microsoft External Staff Moderator

2026-04-15T02:56:25.5933333+00:00

Hello Richard Hanson-Graville,

Just checking in to see if the solution shared above help you to resolve your issue. please reach out to us If you have any further questions.

Thanks

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External images have stopped working in Azure Managed Grafana on all sites. How can I get them back?

1 answer

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