Board Thread:Support Requests - Getting Technical/@comment-26529287-20170111055539/@comment-197.218.83.204-20170112144236

There are html space characters that aren't identical to the normal "space", e.g. the wp:nbsp. These would render differently  (e.g. "image    =") and be interpreted as a template parameter without spaces by mediawiki.

It is not shown differently in the wikitext editor, and users typically unknowingly add them by copy & pasting them from somewhere else. Sometimes the browser decides to convert these automatically, and can cause such issues.

Just to make it clear,  non-breaking spaces would affect any template including a wikitext based infobox, e.g. copy and paste this in a sandbox:

Then try pasting this:

(Template:notice must exist in the wiki, with a parameter info) Non breaking spaces aren't regular spaces, despite their appearance. Perhaps syntax highlighting could be used to show them differently, or something.

Just to be clear, this isn't a mediawiki software issue (aka bug).