azure error 502 - Web server received an invalid response while acting as a gateway or proxy server
I'm trying to host an azure website and tried troubleshooting for a few hours, but still keep getting the same error 502 Web server received an invalid response while acting as a gateway or proxy server.
I tried enabling logging errors on azure, but all it gives me are 404 not found errors
Solution
502 errors won't be visible in your IIS logs because they are returned by the front end server which basically fowards the requests to the worker hosting your site and there are many reasons why the front end can return 502 error.
Please follow https://azure.microsoft.com/en-in/documentation/articles/app-service-web-troubleshoot-http-502-http-503/ to troubleshoot the issue and see if you can identify which one you are running into
- Azure App Service and Application Insights where is performance test?
- Azure App Service Plan CPU Spikes to 100%
- How to login via Service Principal having Federated Credentials rather than Client Secrets
- How to forward access-control-allow-origin header from a Web App to a Front Door?
- Configuring AppSettings with ASP.Net Core on Azure Web App for Containers: Whither Colons?
- What is needed to allow axios http requests from my front-end container to my back-end container on my azure containerized web app?
- Access Azure App Service with Client ID & Secret
- Azure monitor open telemetry python package raising exception when python app deployed on Azure
- SignalR errors in the console even though the requests successfully completed
- Azure Web App Deployment error via msdeploy - ERROR_INSUFFICIENT_A CCESS_TO_SITE_FOLDER
- Deploying a Python App to Azure App Service with Github Actions
- Production slot not using Production as ASPNETCORE_ENVIRONMENT variable
- How allow github actions to access database on vnet
- Azure N-Tier application architecture not working with App Service Container deployment
- My mern project is not running in azure web app
- Predefined type 'System.Void' is not defined or imported during Visual Studio Online build of ASP.NET 5
- Getting an error when I am trying to use pre-built contract model on AI Document Intelligence Studio. Error code in the body
- Managed Identity for Cosmos DB: "Local Authorization is disabled. Use an AAD token to authorize all requests"
- Authenticate to SQL Server with Azure app service managed identity through group
- Deploy python app to existing azure app service with azure cli
- Unable to deploy a python application from az cli
- How can I add tracing / logging messages for a Blazor Server Side App on Azure? (Preferred with App Service Logs)
- AADSTS50012: Invalid client secret is provided when moving from a Test App to Production
- Redirect Microsoft Identity Platform Access Denied in ASP.NET Core
- data base queries in application is running on the local environment, but not on microsoft azure?
- Is there a way to limit access to an Azure App Service?
- How to Log Exceptions to Azure application logs
- Azure React deployment not loading
- Issue with azure app service (linux) environment variable in ASP.NET Core app
- Using Az.Websites module to set up user assigned managed identity to pull image from ACR