OpenAPI Diff reports Compare specs completed after parse failure

[baixiangcpp]

Summary

When one OpenAPI input is invalid, OpenAPI Diff shows the parse error and disables Copy/Download, but the action status still says Compare specs completed.. The success status is misleading after a failed comparison.

Affected route: https://byteflow.tools/en/openapi-diff

Reproduction

1. Click Clear.

2. Put this invalid JSON in the first spec:

   {"openapi":
   

3. Put this valid minimal spec in the second input:

   {"openapi":"3.0.3","info":{"title":"T","version":"1"},"paths":{}}
   

4. Click Compare specs.

Expected

• show the parse error;
• show a failure/error status, or clear the previous success status;
• keep Copy and Download disabled.

Actual

• Unexpected end of JSON input is shown;
• Copy and Download are disabled;
• the status still reads Compare specs completed..

The output itself was empty after the invalid comparison; this report is specifically about the contradictory success status.

Environment

• Browser: Chrome via cloud browser
• Tested: 2026-08-18