message passing between background and content

1 files changed, 9 insertions, 0 deletions

diff --git a/src/content/index.js b/src/content/index.js
new file mode 100644
index 0000000..0fa0720
--- /dev/null
+++ b/src/content/index.js
@@ -0,0 +1,9 @@
+window.addEventListener("keypress", (e) => {
+  browser.runtime.sendMessage({
+    which: e.which || e.keyCode,
+  }).then((msg) => {
+    console.log(`Message from the background script:  ${msg.response}`);
+  }, (err) => {
+    console.log(`Error: ${err}`);
+  });
+});