Apache Cordova app issues

Here I am sharing all the issues/errors which I get during Cordova mobile app development-

1-Call to undefined method mysqli_stmt::get_result

Solution: https://stackoverflow.com/questions/8321096/call-to-undefined-method-mysqli-stmtget-result

cpanel dispable mysqli and enable nd_mysqli

2- Server origin access issue  (Unable to access API hosted on server)

   v1=> .htaccess => added following lines

<IfModule mod_headers.c>

    Header set Access-Control-Allow-Origin "*"

</IfModule>

3- Emulator : net not working. 

   First change DNS to 8.8.8.8 of the computer where avd running.

   Now open android studio=> tools=>AVD manager=> select drop down arrow of the AVD(Emulator)=> click on "Cold Boot Now"

4- Add platform: cordova platform add android

                 cordova platform rm android

cordova platform add browser

5- Run app into emulator:

cordova build --emulator

cordova run android --emulator

To run in mobile-> cordova run or cordova run android

To browser  cordova run browser

6- Biggest Issue: 

i) Why am I seeing net::ERR_CLEARTEXT_NOT_PERMITTED errors in cordova 8/9.....?

        ii) was unable to call API using jquery ajax : Error was cordova app ajax api call returning xhr.status 0

Solution: go to config.xml

<widget id="com.my.awesomeapp" version="1.0.0" xmlns="http://www.w3.org/ns/widgets"

xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">

this line already in config.xml but here you can see xmln:android  not there so just copy xmlns:android="http://schemas.android.com/apk/res/android" 

and past it there.

now past below <edit-config....>....</edit-config> into <plateform name="android"> ..../<platform> section.

<platform name="android">

  <edit-config file="app/src/main/AndroidManifest.xml" mode="merge" target="/manifest/application">

      <application android:usesCleartextTraffic="true" />

  </edit-config>

</platform>

for more details please check https://stackoverflow.com/questions/54752716/why-am-i-seeing-neterr-cleartext-not-permitted-errors-after-upgrading-to-cordo

7- Issue : if you want to use <script> in .html file then need to add follwoing

 <meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' http://* 'unsafe-inline'; script-src 'self' http://* 'unsafe-inline' 'unsafe-eval'" />