- Symptom 1: A single URL points to different files.
- Symptom 2: After I updated a file, I still accessed the old version of it.
- The Content Delivery Network (CDN) cache has not expired.
- The browser did not disable cache.
- The accessed file is hijacked. As a result, the accessed file content is not as expected.
Check whether the CDN cache has expired
Check whether the CDN cache has expired by referring to How do I tell whether user access has hit the CDN cache.
Check whether your browser has disable cache
The following uses Chrome as an example.
- Open Chrome.
- Press F12 to open the Developer Tools.
- Select the Network tab to see whether Disable cache is checked.
Check whether the file is hijacked
If the file accessed is not as expected (for example, the
content-length or response headers are not as expected), your file has been hijacked. In this case, you are advised to access it over HTTPS.