diff --git a/src/js/espflasher.js b/src/js/espflasher.js
index d18e96b..6a69f76 100644
--- a/src/js/espflasher.js
+++ b/src/js/espflasher.js
@@ -32,7 +32,7 @@ class ESPFlasher {
       initbaud = 115200
     }
 
-    const transport = new TransportEx(this.device, true)
+    const transport = new TransportEx(this.device, false)
     this.esploader = new ESPLoader(transport, baudrate, this.term, initbaud === undefined ? baudrate : initbaud)
     this.esploader.ESP_RAM_BLOCK = 0x0800 // we override otherwise flashing on BF will fail
 
diff --git a/src/js/index.js b/src/js/index.js
index fcd10d6..5a431fe 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -234,11 +234,14 @@ async function downloadFile (url, filename) {
 function initialise () {
   checkProxy()
   setInterval(() => { checkProxy() }, 30000)
-  term = new Terminal({ cols: 80, rows: 40 })
+  term = new Terminal()
+  term.open(_('serial-monitor'))
   const fitAddon = new FitAddon()
   term.loadAddon(fitAddon)
   fitAddon.fit()
-  term.open(_('serial-monitor'))
+  window.onresize = () => {
+    fitAddon.fit()
+  }
 
   initBindingPhraseGen()
   let selected = true