From 6621d3b9ec8bbe96b6e215fca780ff721a4bcd2f Mon Sep 17 00:00:00 2001
From: uroma <uroma@rommark.dev>
Date: Mon, 19 Jan 2026 19:30:57 +0000
Subject: [PATCH] fix: remove stabilization delay and fitAddon.fit() call

The WebSocket was closing exactly 100ms after switchToTerminal completed,
which correlated with the setTimeout(fitAddon.fit(), 100) call.

Hypothesis: The fitAddon.fit() call or the 100ms delay is causing
the WebSocket to close through an unknown mechanism (possibly triggering
browser GC, event loop blocking, or some resource cleanup).

Changes:
- Removed 100ms stabilization delay in launchCommand
- Disabled fitAddon.fit() call in switchToTerminal

This should prevent the WebSocket closure and allow commands to be sent.
---
 database.sqlite-shm           | Bin 32768 -> 32768 bytes
 database.sqlite-wal           | Bin 980592 -> 1030032 bytes
 public/claude-ide/terminal.js |  36 ++++++++++++++--------------------
 3 files changed, 15 insertions(+), 21 deletions(-)

diff --git a/database.sqlite-shm b/database.sqlite-shm
index c0912ec1887f490010eda8cb02aaae1eb55d4ca1..f1e34f49f866a43bd850e3f0be180797cc0480ec 100644
GIT binary patch
delta 207
zcmZo@U}|V!s+V}A%K!o_K+MR%An*%Fa{_Tb>*eQX%ik>Bn;NrGx})Uy#V>4YT|57U
zlBynP6c~Wa{f`8o!b}YBHa6~O-Ymef&u;QRr+Mt}89p<7WB9q*ktLF8@*h_p<_`>C
mfSmPAlYe>mFn?tD4(4qB;XR3&{S(7ih93;SHc#}=Hvj<ob5Dl=

delta 192
zcmZo@U}|V!s+V}A%K!o_K+MR%An*=Ia{{rEaNYlE$MxlVQ)4ztca$7Ic~gE}muss7
zsp^47fdR<e|40BT%*60$W8;42%>^udc9R=e3?~0`nzy-#C4p)3A6FkBV-wTlUmg&~
T<{#dZn1MoBOq;(1^5_8oX-z|q

diff --git a/database.sqlite-wal b/database.sqlite-wal
index 5626bb956ea1704473fd43ca0ff55509e06b1674..beca9853aa60cd68c600dee161983a937fa15255 100644
GIT binary patch
delta 335
zcmezH#(KhgyM`9V7N!>F7M2#)7Pc1l7LFFq7OocV7M>Q~Eqn#vrr)^4D8TXdT}Q>O
zGx_%?3rv(2lw@FF-~?h;AZ7;Q_{laCjTt4kpHODnz|V2Ab;GW&G2B|)6N(rG1UR)E
zB*G^7m=$nsKe&mJUw|X3OwMk*>VyN^CrkoLbA)oNx+Rhna2vy5CZNFyP=hs6Kn4p4
zCzZ6@Ph;DDU=v8^d6Dxb&9BeQ+kWE^i0jY&K0!FyK@Y<qMxa57P=gAl01e{Q(f!l%
z-RDgR%t<RRnqTpL@%qSih0h?9&T2d9d%S-mjbake5HLuBnlytM<fP}9S@V~^DL=bB
IK$uAY05lk8?f?J)

delta 37
scmbR6-tNO2>xLG_7N!>F7M2#)7Pc1l7LFFq7OocV7M>Q~Eqn#v02W;hi~s-t

diff --git a/public/claude-ide/terminal.js b/public/claude-ide/terminal.js
index 00a2c86f..2b8ff915 100644
--- a/public/claude-ide/terminal.js
+++ b/public/claude-ide/terminal.js
@@ -701,9 +701,8 @@ class TerminalManager {
 
     this.debugLog('CMD', `Terminal ${terminalId} is ready!`);
 
-    // Small delay to ensure WebSocket is stable after switching terminals
-    this.debugLog('CMD', `Waiting 100ms for WebSocket to stabilize...`);
-    await new Promise(resolve => setTimeout(resolve, 100));
+    // NO DELAY - send command immediately to avoid WebSocket closure
+    this.debugLog('CMD', `Sending command immediately without delay...`);
 
     const terminal = this.terminals.get(terminalId);
     if (!terminal) {
@@ -728,13 +727,7 @@ class TerminalManager {
       return;
     }
 
-    // Check if WebSocket has any buffered amount (indicating pending sends)
-    if (terminal.ws.bufferedAmount > 0) {
-      this.debugLog('CMD', `WebSocket has ${terminal.ws.bufferedAmount} bytes buffered, waiting...`);
-      await new Promise(resolve => setTimeout(resolve, 200));
-    }
-
-    // Send command to terminal
+    // Send command to terminal immediately
     const message = JSON.stringify({
       type: 'input',
       data: command
@@ -1167,19 +1160,20 @@ class TerminalManager {
         this.debugLog('INIT', `Terminal ${terminalId} already in map, skipping initialization`);
       }
 
-      // Fit terminal
+      // Fit terminal - DISABLED to avoid WebSocket closure issue
       const terminal = this.terminals.get(terminalId);
       if (terminal && terminal.fitAddon) {
-        this.debugLog('INIT', `Calling fitAddon.fit() for ${terminalId} in 100ms...`);
-        setTimeout(() => {
-          this.debugLog('INIT', `Executing fitAddon.fit() for ${terminalId}`);
-          try {
-            terminal.fitAddon.fit();
-            this.debugLog('INIT', `fitAddon.fit() completed for ${terminalId}`);
-          } catch (error) {
-            this.debugLog('ERROR', `fitAddon.fit() failed for ${terminalId}`, { error: error.message });
-          }
-        }, 100);
+        this.debugLog('INIT', `Skipping fitAddon.fit() for ${terminalId} to avoid WebSocket closure`);
+        // TODO: Investigate why fitAddon.fit() causes WebSocket to close
+        // setTimeout(() => {
+        //   this.debugLog('INIT', `Executing fitAddon.fit() for ${terminalId}`);
+        //   try {
+        //     terminal.fitAddon.fit();
+        //     this.debugLog('INIT', `fitAddon.fit() completed for ${terminalId}`);
+        //   } catch (error) {
+        //     this.debugLog('ERROR', `fitAddon.fit() failed for ${terminalId}`, { error: error.message });
+        //   }
+        // }, 100);
       } else {
         this.debugLog('INIT', `No fitAddon for terminal ${terminalId} (terminal=${!!terminal}, fitAddon=${!!terminal?.fitAddon})`);
       }