d

pcarrier · Apr 2, 2024 · 60d7cb3 · 60d7cb3
1 parent 776e1cc
commit 60d7cb3
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diff --git a/README.md b/README.md
@@ -7,6 +7,7 @@
 * [Exposing services](#exposing-services)
 * [Sharing files](#sharing-files)
 * [`echo`](#echo)
+* [`d`](#d)
 * [Finding my IP](#finding-my-ip)
 
 ## Exposing services
@@ -112,6 +113,10 @@ Content-Type: application/json
 {"a":42}
 ```
 
+## `d`
+
+Embed a page in the URL itself, in its client-only side. [Example](https://srv.us/d#%3Ch1%3EDemo%3C/h1%3E), [original idea](https://news.ycombinator.com/item?id=39905866).
+
 ## Finding my IP
 
 Please take a look at [ident.me](https://api.ident.me).
diff --git a/backend/main.go b/backend/main.go
@@ -355,6 +355,11 @@ func (s *server) serveRoot(https *tls.Conn) error {
 		}
 		_, _ = https.Write([]byte(fmt.Sprintf("HTTP/1.1 200 OK\r\nContent-Type: %s\r\n\r\n", ct)))
 		_, _ = io.Copy(https, req.Body)
+	} else if req.URL.Path == "/d" {
+		defer func() {
+			_ = req.Body.Close()
+		}()
+		_, _ = https.Write([]byte("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<html><head><script>document.body.innerHTML = decodeURI(window.location.hash.substring(1))</script></head></html>"))
 	} else if req.Method == "POST" {
 		defer func() {
 			_ = req.Body.Close()