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dify - 💡(How to fix) Fix Reasoning duration resets to 0.0s after switching browser tab/window in Chatflow [1 participants]

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langgenius/dify#35424•Fetched 2026-04-20 12:15:56
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Dify version

1.13.3

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

  1. Open a Chatflow conversation page that uses a reasoning-capable model.
  2. Send a message and wait until the reasoning duration is displayed normally and the response is fully completed.
  3. Switch to another browser tab or another application window.
  4. Switch back to the Chatflow page.
  5. Check the displayed reasoning duration.

✔️ Expected Behavior

The final reasoning duration of a completed message should remain unchanged after switching tabs/windows or after the page regains focus.

It should continue showing the actual completed duration instead of being reset to 0.0s.

❌ Actual Behavior

The reasoning duration, which was previously displayed correctly, is reset to 0.0s.

extent analysis

TL;DR

The issue can likely be fixed by modifying the code to preserve the reasoning duration when the page regains focus.

Guidance

  • Investigate the code responsible for updating the reasoning duration display and ensure it is not being reset when the page regains focus.
  • Check for any event listeners or timers that may be triggering a reset of the reasoning duration when the page is refocused.
  • Verify that the reasoning duration is being stored in a persistent state, such as a variable or data store, that is not affected by page focus changes.
  • Consider adding a check to ensure the reasoning duration is only updated when a new message is sent, rather than when the page regains focus.

Example

// Pseudo-code example, actual implementation may vary
let reasoningDuration = 0;

// Update reasoning duration when message is sent
function updateReasoningDuration(newDuration) {
  reasoningDuration = newDuration;
  displayReasoningDuration(reasoningDuration);
}

// Display reasoning duration
function displayReasoningDuration(duration) {
  // Code to display the reasoning duration
}

// When page regains focus, do not reset reasoning duration
window.addEventListener('focus', () => {
  // Do not update reasoning duration here
});

Notes

The exact solution will depend on the specific implementation of the Chatflow conversation page and the reasoning-capable model. The provided example is a simplified illustration of the concept.

Recommendation

Apply workaround: Modify the code to preserve the reasoning duration when the page regains focus, as this is likely the cause of the issue.

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