Move & update current browser platform usage notes

ref:
- #297
- #576
- storesafe/cordova-sqlite-storage-help#8

Author: Christopher J. Brody

README.md

@@ -6,7 +6,7 @@ Native SQLite component with API based on HTML5/[Web SQL (DRAFT) API](http://www
 - macOS ("osx" platform)
 - Windows 10 (UWP) DESKTOP and MOBILE (see below for major limitations)
 
-Browser platform is supported _with some limitations (no support for numbered parameters)_ as described in [Browser platform usage notes](#browser-platform-usage-notes) section below.
+Browser platform is currently supported with some limitations as described in [browser platform usage notes](#browser-platform-usage-notes) section, will be supported with more features such as numbered parameters in upcoming major release for July 2018 (see below).
 
 **LICENSE:** MIT, with Apache 2.0 option for Android and Windows platforms (see [LICENSE.md](./LICENSE.md) for details, including third-party components used by this plugin)
 
@@ -29,13 +29,6 @@ New release in July 2018 will include the following major enhancements ([litehel
 - ~~drop Android NDK build for x86_64 ([litehelpers/Cordova-sqlite-storage#772](https://github.com/litehelpers/Cordova-sqlite-storage/issues/772)); NDK build for x86 will still work on x86_64 if no other plugins have NDK build for x86_64; feedback is requested in case of interest in NDK build for x86_64~~
 - drop support for location: 0-2 values in openDatabase call (please use `location: 'default'` or `iosDatabaseLocation` setting in openDatabase as documented below)
 
-## Browser platform usage notes
-
-As stated above the browser platform will be supported _(with numbered parameters working_ using [kripken / sql.js](https://github.com/kripken/sql.js) (see [litehelpers/Cordova-sqlite-storage#576](https://github.com/litehelpers/Cordova-sqlite-storage/pull/576)) in the near future. Alternative solutions for now _(with no support for numbered parameters such as `?1`, `?2`, ...)_:
-
-- Use [brodybits / sql-promise-helper](https://github.com/brodybits/sql-promise-helper) as described in [brodybits/sql-promise-helper#4](https://github.com/brodybits/sql-promise-helper/issues/4)
-- Mocking on Ionic Native is possible as described in <https://www.techiediaries.com/mocking-native-sqlite-plugin/> and <https://medium.com/@tintin301/ionic-sqlite-storage-setting-up-for-browser-development-and-testing-67c0f17fc7af>
-
 ## About this plugin version
 
 This is the common plugin version which supports the most widely used features and serves as the basis for the other versions.
@@ -326,6 +319,37 @@ In addition, this guide assumes a basic knowledge of some key JavaScript concept
 
 **NOTICE:** This plugin is only supported with the Cordova CLI. This plugin is *not* supported with other Cordova/PhoneGap systems such as PhoneGap CLI, PhoneGap Build, Plugman, Intel XDK, Webstorm, etc.
 
+## Browser platform usage notes
+
+As stated above the browser platform will supported with features such as numbered parameters using [kripken / sql.js](https://github.com/kripken/sql.js) (see [litehelpers/Cordova-sqlite-storage#576](https://github.com/litehelpers/Cordova-sqlite-storage/pull/576)) in the near future. Alternative solutions for now, with features such as numbered paramters (`?1`, `?2`, etc.) missing:
+
+1. Use [brodybits / sql-promise-helper](https://github.com/brodybits/sql-promise-helper) as described in [brodybits/sql-promise-helper#4](https://github.com/brodybits/sql-promise-helper/issues/4)
+2. Mocking on Ionic Native is possible as described in <https://www.techiediaries.com/mocking-native-sqlite-plugin/> and <https://medium.com/@tintin301/ionic-sqlite-storage-setting-up-for-browser-development-and-testing-67c0f17fc7af>
+3. Open the database as follows:
+
+```js
+if (window.cordova.platformId === 'browser') db = window.openDatabase('MyDatabase', '1.0', 'Data', 2*1024*1024);
+else db = window.sqlitePlugin.openDatabase({name: 'MyDatabase.db', location: 'default'});
+```
+
+or more compactly:
+
+```js
+db = (window.cordova.platformId === 'browser') ?
+  window.openDatabase('MyDatabase', '1.0', 'Data', 2*1024*1024) :
+  window.sqlitePlugin.openDatabase({name: 'MyDatabase.db', location: 'default'});
+```
+
+(lower limit needed to avoid permission request from Safari)
+
+and limit database access to DRAFT standard transactions:
+- no `executeSql` calls outside DRAFT standard transactions
+- no `sqlBatch` calls
+- no `echoTest` or `selfTest` possible
+- no `deleteDatabase` calls
+
+It would be ideal for the application code to abstract the openDatabase part away from the rest of the database access code.
+
 ### Windows platform notes
 
 The Windows platform can present a number of challenges which increase when using this plugin. The following tips are recommended for getting started with Windows:
@@ -688,7 +712,7 @@ FUTURE TBD: Proper date/time handling will be further tested and documented at s
 ## Major TODOs
 
 - More formal documentation of API, especially for non-standard functions
-- Browser platform
+- Browser platform, using [kripken / sql.js](https://github.com/kripken/sql.js) in upcoming release, as discussed in [litehelpers/Cordova-sqlite-storage#576](https://github.com/litehelpers/Cordova-sqlite-storage/pull/576)
 - IndexedDBShim adapter (possibly based on IndexedDBShim)
 - Further cleanup of [support](#support) section
 - Resolve or document remaining [open Cordova-sqlite-storage bugs](https://github.com/litehelpers/Cordova-sqlite-storage/issues?q=is%3Aissue+is%3Aopen+label%3Abug-general)