Enforce PostMessage channel in webR

r-wasm · Dec 16, 2024 · 51ec97f · 51ec97f
1 parent 2f11366
commit 51ec97f
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/_extensions/live/templates/webr-setup.ojs b/_extensions/live/templates/webr-setup.ojs
@@ -1,5 +1,5 @@
 webROjs = {
-  const { WebR } = window._exercise_ojs_runtime.WebR;
+  const { WebR, ChannelType } = window._exercise_ojs_runtime.WebR;
   const {
     WebREvaluator,
     WebREnvironmentManager,
@@ -37,6 +37,10 @@ webROjs = {
   const filesContent = document.querySelector(`script[type=\"vfs-file\"]`).textContent;
   const files = JSON.parse(b64Decode(filesContent));
 
+  // Use PostMessage channel for async communication
+  // We do not expect to take nested prompt input in Quarto Live cells
+  data.options.channelType = ChannelType.PostMessage;
+
   // Initialise webR and setup for R code evaluation
   let webRPromise = (async (webR) => {
     statusText.textContent = `Downloading webR`;