It turns out the way MODX 2.3 is handling download of packages is triggering some mod_security rules. My host disabled these rules for my site, and I can now download and upgrade packages. The rule numbers are:
340113
340147
350147
340148
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☆ A M B ☆
- 2,213 Posts
If I recall correctly mod_security rule numbers do vary based on the lists being used, so you should test and remove the appropriate rules based on your servers ruleset.
I am also having this issue. clean install of 2.3.1 - Try and add any addon - just a never ending Downloading loop... I have removed the SETUP directory during the setup process.... any ideas???
As mentioned above, a mod_security issue with the host is the most likely cause.
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☆ A M B ☆
- 721 Posts
I always just get the webhost to white label the site and remove the mod_security rules.