{{ if hugo.IsProduction -}}
{{ else -}}
{{ end -}}
{{ partialCached "favicons.html" . -}}
{{- if .IsHome -}}
{{ .Site.Title -}}
{{ else -}}
{{ with .Title }}{{ . }} – {{ end -}}
{{ .Site.Title -}}
{{ end -}}
{{- with .Params.canonical -}}
{{- else -}}
{{- end -}}
{{- partial "opengraph.html" . -}}
{{- template "_internal/schema.html" . -}}
{{- template "_internal/twitter_cards.html" . -}}
{{- partialCached "head-css.html" . -}}
{{- if and (eq hugo.Environment "production") .Site.Config.Services.GoogleAnalytics.ID }}
{{ partial "google-analytics.html" . }}
{{- end }}
{{ $noop := .WordCount }}
{{ if .Page.Store.Get "hasMath" }}
{{ $katex_css_url := printf "https://cdn.jsdelivr.net/npm/katex@latest/dist/katex%s.css" (cond hugo.IsProduction ".min" "") -}}
{{ with try (resources.GetRemote $katex_css_url) -}}
{{ with .Err -}}
{{ errorf "Could not retrieve KaTeX css file from CDN. Reason: %s." . -}}
{{ else with.Value -}}
{{ with resources.Copy (printf "css/katex%s.css" (cond hugo.IsProduction ".min" "")) . }}
{{ $secureCSS := . | resources.Fingerprint "sha512" -}}
{{ end -}}
{{ end -}}
{{ end -}}
{{ end }}
{{ partial "custom/head-end.html" . }}