Cordova iOS with Failed to load webpage with error: Could not connect to the server.

This problem is caused by the transport security policy changed on iOS9. It affects the UIWebView of iOS9. New WKWebView is not affected by this problem.


Check if the cordova-ios version is larger than 4.0:
cordova platform version ios
If cordova-ios is larher than 4.0, please use Cordova WKWebView Engine with http server (localhost)support: 
https://github.com/apache/cordova-plugins/tree/master/wkwebview-engine-localhost

cordova plugin add https://github.com/apache/cordova-plugins.git#master:wkwebview-engine-localhost
Add the following tag in config.xml if using WKWebView:

<feature name="CDVWKWebViewEngine">
  <param name="ios-package" value="CDVWKWebViewEngine" /> 
</feature>
<preference name="CordovaWebViewEngine" value="CDVWKWebViewEngine" />
You must specify the wkwebview server port on config.xml for ios using indexdb or localstorage (port e.g. 12344 ) rather than the randomize port :


<preference name="AlternateContentSrc" value="http://localhost:12344" />
instead of

Cordova WKWebView Polyfill Plugin

https://github.com/Telerik-Verified-Plugins/WKWebView
cordova plugin add cordova-plugin-wkwebview --variable WKWEBVIEW_SERVER_PORT=12344

OR

To solve this problem you may use the new WKWebView with Cordova or you may add the follow key in the info.list:


<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key><true/>
</dict>

 or

 
<key>NSExceptionDomains</key>
  <dict>
    <key>localhost</key>
    <dict>
      <key>NSIncludesSubdomains</key>
      <false/>
      <key>NSExceptionAllowsInsecureHTTPLoads</key>
      <false/>
      <key>NSExceptionRequiresForwardSecrecy</key>
      <true/>
      <key>NSExceptionMinimumTLSVersion</key>
      <string>TLSv1.2</string>
      <key>NSThirdPartyExceptionAllowsInsecureHTTPLoads</key>
      <false/>
      <key>NSThirdPartyExceptionRequiresForwardSecrecy</key>
      <true/>
      <key>NSThirdPartyExceptionMinimumTLSVersion</key>
      <string>TLSv1.2</string>
      <key>NSRequiresCertificateTransparency</key>
      <false/>
    </dict>
  </dict>


or just put this in the config.xml:

    
        
<platform name="ios">
    <config-file platform="ios" target="*-Info.plist" parent="NSAppTransportSecurity">
        <dict>
            <key>NSAllowsArbitraryLoads</key><true/>
        </dict>
    </config-file>
</platform>
        
    













































留言











張貼留言



















這個網誌中的熱門文章









java.lang.NoClassDefFoundError: org/apache/xerces/jaxp/datatype/XMLGregorianCalendarImpl$Parser





















When you encounter the following error that related to web service. java.lang.NoClassDefFoundError: org/apache/xerces/jaxp/datatype/XMLGregorianCalendarImpl$Parser   Solution 1:  Ensure no xercesImpl.jar in your classpath since the implementation of xerce is built-in wiht JAVA SE 1.6.   Solution 2:  Use XmlJavaTypeAdapter [ @XmlJavaTypeAdapter(JaxbDateAdapter.class)] to convert XMLGregorianCalendar type to Date type. XMLGregorianCalendar is the built-in Java data type for JAXB mapping with datetime.   Example:   Binding.xjb  <?xml version="1.0" encoding="UTF-8"?> <bindings xmlns="http://java.sun.com/xml/ns/jaxb"                 xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"                 xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"               ...








閱讀完整內容










10 Tips for Proper Application Logging




















圖片







Reference: https://www.javacodegeeks.com/2011/01/10-tips-proper-application-logging.html     Our latest   JCP partner ,   Tomasz Nurkiewicz , has submitted a number of posts describing the basic principles of proper application   logging . I found them quite interesting, thus I decided to aggregate them in a more compact format and present them to you. So, here are his suggestions for clean and helpful logs:(NOTE: The original posts have been slightly edited to improve readability)   1) Use the appropriate tools for the job   Many programmers seem to forget how important is logging an application’s behavior and its current activity. When somebody puts:      1 log.info( "Happy and carefree logging" );       happily somewhere in the code, he probably doesn’t realize the importance of application logs during maintenance, tuning and failure identification. Underestimating the value of good logs is a terrible mistake.   In my opinion, SLF4J is the best logging API availab...








閱讀完整內容










Turn off WebLogic basic authentication





















Editing config.xml To set the e enforce-valid-basic-auth-credentials flag, perform the following steps:    1. Add the   element to config.xml  within the  element.       false            2. Start or restart all of the servers in the domain. ============================================= Using WebLogic Scripting Tool (WLST) Using WLST to Check the Value of enforce-valid-basic-auth-credentials The Administration Console does not display or log  the enforce-valid-basic-auth-credentials setting. However, you can use  WLST to check the value in a running server. Remember that  enforce-valid-basic-auth-credentials is a domain-wide setting. The WLST session shown below demonstrates how to  check the value of the enforce-valid-basic-auth-credentials flag in a  sample running server. Example: wls:/offline> connect('weblogic','weblogic123','t3://localhost:7002') Connecting to t3://localhost:7002 with userid weblogic ... Successfully connected to Admin Server 'AdminS...








閱讀完整內容