sphinx-agent: Take entire websocket URL from query parameter

The injected `webview.js` script now assumes that the `ws` query
parameter contains the entire URI to use when creating the websocket
connection

lib/esbonio/esbonio/server/features/preview_manager/__init__.py

@@ -188,14 +188,15 @@ async def show_preview_uri(self) -> Optional[Uri]:
         server = await self.preview
         webview = await self.webview
 
-        query_params: dict[str, Any] = dict(ws=webview.port)
+        host = "localhost"
+        query_params: dict[str, Any] = dict(ws=f"ws://{host}:{webview.port}")
 
         if self.config.show_line_markers:
             query_params["show-markers"] = True
 
         uri = Uri.create(
             scheme="http",
-            authority=f"localhost:{server.port}",
+            authority=f"{host}:{server.port}",
             path=self.build_path,
             query=urlencode(query_params),
         )

lib/esbonio/esbonio/sphinx_agent/static/webview.js

@@ -216,16 +216,12 @@ function renderLineMarkers() {
     document.body.append(markerStyle)
 }
 
-const host = window.location.hostname;
-const queryString = window.location.search;
-const queryParams = new URLSearchParams(queryString);
-const ws = parseInt(queryParams.get("ws"));
+const queryParams = new URLSearchParams(window.location.search);
 const showMarkers = queryParams.has("show-markers")
+const wsUrl = queryParams.get("ws");
 
-const wsServer = `ws://${host}:${ws}`
-console.debug(`Connecting to '${wsServer}'...`)
-
-const socket = new WebSocket(wsServer);
+console.debug(`Connecting to '${wsUrl}'...`)
+const socket = new WebSocket(wsUrl);
 let connected = false
 
 function sendMessage(data) {
@@ -242,7 +238,7 @@ const handlers = {
         console.debug("Reloading page...")
         window.location.reload()
     },
-    "view/scroll": (params) => {scrollViewTo(params.uri, params.line)}
+    "view/scroll": (params) => { scrollViewTo(params.uri, params.line) }
 }
 
 function handle(message) {
@@ -291,7 +287,7 @@ function main() {
         renderLineMarkers()
     }
 
-    rewriteInternalLinks(ws)
+    rewriteInternalLinks(wsUrl)
 
     // Are we in an <iframe>?
     if (window.parent !== window.top) {