On one of the sites I am a member of I can set my nickname for a chat window. The nickname in the chat window has a decent character limit.
In the settings for the site itself I am restricted to a maximum of 15 characters, which is an annoyance and an inconsistency.
Editing the webpage in Chrome (or Chromium) can be done by right-clicking on the element (in my case the text field) and clicking “Inspect” on the popup menu.
A new window will open on the right of the webpage. At the top will be a line reading
Elements Console Sources Network
Click on “Sources”.
As there was a dialogue alert box displayed, we can do a search for the text of the message.
Press Ctrl-F (Find) and type in the alert message, in my case:
“Chat Nick Name can take a maximum”
Somewhere right above that will be the code you need to amend (at least in my case).
Find the code you need to change, change it to what you need.
Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.