External http access problem net::ERR_CONTENT_LENGTH_MISMATCH 200 (OK)

New installation of Leap with apache2
localhost access to web pages works fine

http access from other machines on intranet works fine if html file has a length 255 or less

so http://192…/index.html works if html is

HELLO

But if you make index.html have enough characters so length is over 255 it fails to open
Chrome developer tools net::ERR_CONTENT_LENGTH_MISMATCH 200 (OK)

access.log on server shows request and status 200 and length even for longer files

I turned off the firewall to eliminate that

Thanks for any help

Hi, welcome to these forums

How did you setup apache? I’ve never seen this before.

Please confirm that your /index.html contains properly formatted HTML and is not just plain text, e.g. “HOME”.

Some possible causes listed in the following

https://stackoverflow.com/questions/23521839/failed-to-load-resource-neterr-content-length-mismatch

Bottom line,
How did you install and deploy this webserver and website?
Did you install from openSUSE packages?
Did you configure using the YaST > HTTP server module?
Does your page load any special libraries or is it s very basic HTML page?

TSU

Installed from OPENSUSE packages
did configure HTTP module
no special libraries

web pages work on other servers

I am going to reinstall LEAP and see if it re occurs