Browser decompresses database backup while keeping the .gz suffix

This seems to be still an issue for 5.1.x. But I couldn't test it on firefox. It might also be a problem related to #2946032: Gzip not compressing when using "Download" target, but .gz appended → .

Seeing this in Firefox too.

Please do not change the version number when a) this is still very much a BAM for D7 problem en b) BAM 5 is a complete rewrite; even if it shares the same problem, it probably does so for completely different reasons.

@DamienMcKenna, do you have an approximate idea of what you would like browser testing to achieve?