Sorry but I cannot reproduce this behaviour in any of the latest versions of:
> Chrome (Version 65.0.3325.162 (Official Build) (64-bit))
> Chromium (Version 64.0.3282.167 (Official Build) Built on Ubuntu , running on LinuxMint 18.3 (64-bit))
> or
> Firefox (58.0.2 (64-bit) for Linux Mint mint-1.0)
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