Trailing white space in Service URL leads to error

[Gubaer]

• Open preferences for WMS plugin
• enter the URL http://glebius.int.ru/wms/irs? and append arbitrary white space (blanks, newlines)
• click Get Layers

==>

• Plugin can't retrieve layers from http://glebius.int.ru/wms/irs?

Suggested improvement

• Remove trailing and leading white space in the Service URL before retrieving the list of available layers

[Gubaer]

Input of Service URL with trailing whitespace

[Gubaer]

error message

[Zverikk]

Also, siberiano reports that after copypasting TMS URL with a newline char at the end into the table, newline gets written to the preferences file, resulting in a blank line and "Preferences file had errors" on next startups. This is rather severe, I guess. We need to trim all input strings of spaces and newlines.

[stoecker]

In [4164/josm]:

fix #5510 - strip white space and return from WMS/TMS URLs