Fix stray slash in notification icon URL generation.

[maniac103]

Causes 404 when fetching icon.

[codecov]

Codecov Report

Merging #793 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master     #793   +/-   ##
=======================================
  Coverage   11.32%   11.32%           
=======================================
  Files          55       55           
  Lines        4556     4556           
  Branches      577      577           
=======================================
  Hits          516      516           
  Misses       3983     3983           
  Partials       57       57

Impacted Files	Coverage Δ
...penhab/habdroid/ui/OpenHABNotificationAdapter.java	0% <0%> (ø)	⬆️

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[mueller-ma]

I haven't seen that // causes a 404. Can you provide an example link?

[maniac103]

I have seen it during my tests with the URL https://myopenhab.org:443//images/smiley.png ... The proxying of the image from my own OH (1.8) instance failed in that case. Without the stray slash it worked fine.

[maniac103]

Kai also stumbled over a similar issue: openhab/openhab-cloud#158 (comment) ... looks like openhab-cloud is a bit picky about the URLs thrown at it.