"All updates" takes time to show the latest information if using IE11 of Windows 7 x86

Summary

"All updates" takes time to show the latest information if using IE11 of Windows 7 x86. It usually takes a few minutes. It is because IE11 of Windows 7 x86 does not aggressively use "Cache-control: no-cache" HTTP header and because there is a bug that Confluence returns "304 Not Modified" even if there is an update when the request does not have the header.

It is not a big problem for IE11 of x64 and other browsers (i.e. Firefox), because they use "Cache-control: no-cache" HTTP request header more frequently, comparing to IE11 of x86.

Steps to Reproduce

1. Install fresh Windows 7 x84
2. Install IE11 on it
3. Go to Confluence Dashboard via the browser

Expected Results

"All updates" takes no or little time to show the latest information

Actual Results

"All updates" takes time to show the latest information

Notes

Browsers internally call /rest/dashboardmacros/1.0/updates to retrieve the updates when rendering "All updates" page. The REST API returns "304 Not Modified" even if there is an update when the HTTP request does not include "Cache-control: no-cache" header option.

Workaround

• Use Firefox or Chrome
• Or, in Internet Explorer
  1. Go to Cog Menu > Internet Options
  2. General Tab, Click Settings
  3. Select "Every time I visit the page" (it will always include "Cache-control: no-cache")
  4. Click OK
  5. Click OK