Fix bookmarklet under Chrome
Fix bookmarklet under Chrome

checkIsOnline isn't called before the connector gets used except in IE.

The mixed content blocker in modern IE combined with the https
redirect breaks communication with ZSA on all pages anyway, so we may
just want to give up on making the bookmarklet talk to ZSA.

gracile-fr/zotero,retorquere/zotero,adunning/zotero,sendecomp/zotero,retorquere/zotero,robamler/zotero,LinuxMercedes/zotero,egh/zotero,egh/zotero,gracile-fr/zotero,sendecomp/zotero,hoehnp/zotero,hoehnp/zotero,gracile-fr/zotero,adunning/zotero,LinuxMercedes/zotero,sendecomp/zotero,hoehnp/zotero,robamler/zotero,retorquere/zotero,adunning/zotero,LinuxMercedes/zotero,robamler/zotero,egh/zotero,rmzelle/zotero,rmzelle/zotero,rmzelle/zotero