offline persistence toolkit error

Summary:

when i am trying to post i VBCS PWA App using SAAS rest api call during offline ,facing below error.

Content (required):

/vbsw/private/fetchHandler]: TypeError: Failed to fetch

at offline-persistence-…1.5.7.js:1802:14607

at new Promise (<anonymous>)

at o.browserFetch (offline-persistence-…1.5.7.js:1802:14402)

at fetchHandler.js:974:1

Version (include the version you are using, if applicable):

23.01

Code Snippet (add any code snippets that support your topic, if applicable):