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// suppress console.log, switch to true for debug
// suppress console.log, switch to true for debug
var Debug_switch = false;
var Debug_switch = true;
// seemingly the Safari engine uses a somewhat different implementation of arguments for db.transaction and index.get
// seemingly the Safari engine uses a somewhat different implementation of arguments for db.transaction and index.get
// because no browser on any mac / ios is allowed to use a different engine, rather than user agent, platform can be tested
// because no browser on any mac / ios is allowed to use a different engine, rather than user agent, platform can be tested
var iOS = !!navigator.platform && /Macintosh|MacIntel|MacPPC|Mac68K|Mac|iPad|iPhone|iPod/.test(navigator.platform);
var iOS = !!navigator.platform && /iPad|iPhone|iPod/.test(navigator.platform);
var Safari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
debuglog("iOS:" + iOS + " & Saf:" + Safari);
// deterministic hash generator for creating user id#s from usernames, should be replaced by something more functional (guaranteed to be transitively different)
// deterministic hash generator for creating user id#s from usernames, should be replaced by something more functional (guaranteed to be transitively different)
hashCode = function(s) {
hashCode = function(s) {
// Mode 'remove from record' field1 field2
// Mode 'remove from record' field1 field2
// retrieve record, splice/delete record.field1.field2, push back
// retrieve record, splice/delete record.field1.field2, push back
// Mode 'import record' field1
// retrieve record, add all fields from field1, push back
async function Enquire( pddbname, record, sqitch, control_1, control_2, control_3 ) {
async function Enquire( pddbname, record, sqitch, control_1, control_2, control_3 ) {
var tx;
var tx;
if ( iOS ) {
if ( iOS || Safari ) {
tx = db.transaction([pddbname], "readwrite");
tx = db.transaction([pddbname], "readwrite");
} else {
} else {
// Get the original record from the db...
// Get the original record from the db...
var getRecord;
var getRecord;
if ( iOS ) {
if ( iOS || Safari ) {
getRecord = index.get(record.id);
getRecord = index.get(record.id);
} else {
} else {