Updating add-ons by file upload hangs using UPM
Uploading a JAR just using UPM as described in Updating add-ons by file upload just hangs on the spinner. See image below for example:
No specific error was shown in the logs
The proxy was responding with 413 (Request Entity Too Large).
For the reported issue and proper illustration, the proxy was a nginx. The
client_max_body_size parameter was set to
8m whilst the plugin JAR was 22mb large. After setting the ngnix
client_max_body_size parameter to
50m the plugin installation was successfully completed.