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Serve .html, .svg and .xhtml as text/plain in browse file handler #103

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Merged
andrew merged 1 commit into from
May 2, 2026
Merged

Serve .html, .svg and .xhtml as text/plain in browse file handler #103

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10 changes: 5 additions & 5 deletions internal/server/browse.go
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Original file line number Diff line number Diff line change
Expand Up @@ -348,11 +348,11 @@ func (s *Server) browseFile(w http.ResponseWriter, r *http.Request, ecosystem, n
}
defer func() { _ = fileReader.Close() }()

// Set content type based on file extension
contentType := detectContentType(filePath)
w.Header().Set("Content-Type", contentType)
w.Header().Set("Content-Security-Policy", "sandbox")
w.Header().Set("X-Content-Type-Options", "nosniff")

// Set filename for download
_, filename := path.Split(filePath)
w.Header().Set("Content-Disposition", fmt.Sprintf("inline; filename=%q", filename))

Expand All @@ -368,8 +368,8 @@ func detectContentType(filename string) string {
// Text formats
case ".txt", ".md", ".markdown":
return contentTypePlainText
case ".html", ".htm":
return "text/html; charset=utf-8"
case ".html", ".htm", ".xhtml":
return contentTypePlainText
case ".css":
return "text/css; charset=utf-8"
case ".js", ".mjs":
Expand Down Expand Up @@ -423,7 +423,7 @@ func detectContentType(filename string) string {
case ".gif":
return "image/gif"
case ".svg":
return "image/svg+xml"
return contentTypePlainText
case ".ico":
return "image/x-icon"

Expand Down
4 changes: 4 additions & 0 deletions internal/server/browse_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -179,6 +179,10 @@ func TestDetectContentType(t *testing.T) {
{"file.go", "text/x-go; charset=utf-8"},
{"file.py", "text/x-python; charset=utf-8"},
{"file.rs", "text/x-rust; charset=utf-8"},
{"file.html", contentTypePlainText},
{"file.htm", contentTypePlainText},
{"file.xhtml", contentTypePlainText},
{"file.svg", contentTypePlainText},
{"file.png", "image/png"},
{"file.jpg", "image/jpeg"},
{"README", contentTypePlainText},
Expand Down