ConditionalProxyMiddleware throws when webpack output.publicPath is relative #1571

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fergalmoran · 2025-08-09T17:20:41Z

fergalmoran commented

2025-08-09 17:20:41 +00:00

Originally created by @rmja on 6/10/2016

The ConditionalProxyMiddleware throws when webpack output.publicPath is relative, which is useful when the app is hosted on a, for the app, unknown path base.

this line should ensure that that the path prefix starts with a '/', such that this line does not throw. Something like _pathPrefix = '/' + pathPrefix.TrimStart('/'); should work.

*Originally created by @rmja on 6/10/2016* The ConditionalProxyMiddleware throws when webpack output.publicPath is relative, which is useful when the app is hosted on a, for the app, unknown path base. [this line](https://github.com/aspnet/JavaScriptServices/blob/master/src/Microsoft.AspNetCore.SpaServices/Webpack/ConditionalProxyMiddleware.cs#L30) should ensure that that the path prefix starts with a '/', such that [this line](https://github.com/aspnet/JavaScriptServices/blob/master/src/Microsoft.AspNetCore.SpaServices/Webpack/ConditionalProxyMiddleware.cs#L37) does not throw. Something like `_pathPrefix = '/' + pathPrefix.TrimStart('/');` should work.

fergalmoran closed this issue

2025-08-09 17:20:41 +00:00

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Reference: github/JavaScriptServices#1571