Topic on Project:Support desk

I am attempting to upgrade my wiki from 1.31 to 1.35.1. I did so as I normally do and the wiki came up fine in firefox after doing the update from the command line. However, when I visited the URL in Chrome instead of Firefox, it comes up as gibberish. (Tried on multiple systems.) I turned on the exception details and error reporting but it's still only displaying gibberish. Nothing at all of concern comes up in browser debugging. My versions meet minimum requirements. I backed up my working 1.31 again and tried a second time with identical results. My 1.31 install has been updating with no issues. I'm not able to locate any config changes that might have occurred during the two versions for my localsettings file. I'm not running any special extensions and I'm using the vector skin. Please let me know if you have any thoughts, thanks in advance for your time.

URL: http://themelvins.net/wikiupdate

I have also set up an empty wiki with the latest files that isn't an upgrade at http://themelvins.net/wikinew This wiki install does the same thing, displays gibberish in Chrome/Edge/Safari but comes up as expected in Firefox which is my primary browser. My only thought at this point is that it is a PHP issue with 1.35 and PHP 7.3. The mediawiki site says that 7.3 is supported however.

PHP	7.3.23 (litespeed)
MySQL	5.6.49-cll-lve
ICU	63.1

This is another instance of task T235554

Does you LocalSettings.php have a $wgDisableOutputCompression statement? If it does and it sets = true;, then in my wiki commenting it out resolved the problem. You could also look at your PHP settings, what is setting of zlib.output_compression?

Thanks @Peculiar Investor the disable output compression statement is commented out which appears to be the default placement of it in local settings as it is also commented out in the fresh install of 1.35.1 that I installed. As for zlip.output compression, it is turned off:

zlib

ZLib Support	enabled
Stream Wrapper	compress.zlib://
Stream Filter	zlib.inflate, zlib.deflate
Compiled Version	1.2.3
Linked Version	1.2.3

Directive	Local Value	Master Value
zlib.output_compression	Off	Off
zlib.output_compression_level	-1	-1
zlib.output_handler	no value	no value

Thanks for pointing me to the thread @Ciencia Al Poder I've reviewed the contents and it is still actively being discussed. I installed 1.35.0 and it had the same issues as .1 so I'm going to proceed with the assumption this is a known bug actively being worked and stick with the long term support release and try 1.35 again in a couple more iterations. I'm pretty confident my php setup is accurately configured and the fact that the bug causes issues in some browsers but not others leads me to believe 1.35 isn't ready for my implementation. I run a couple other PHP products for my website that are up to date and function as expected.