Your situation may be caused by the browser on the homepage of the OA system you are using being incompatible with scripts.

You can determine this problem in the following ways.

After entering the OA address, when the browser's loading progress is over, right-click the page to view the page source code to see if there is any content.

If so, it is caused by code compatibility problems.

If not, it may be that your IE browser set up a special proxy before OA access. Your other browsers that are not based on IE kernel are not configured.

I hope my answer is helpful to you. If in doubt, please continue to consult us.