title: Glide cannot load image
body: <p>I have simple layout with ImageView</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/activity_main"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      tools:context="com.example.vbusovikov.glidetest.MainActivity"&gt;
  
      &lt;ImageView
          android:id="@+id/image"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_centerInParent="true"
          /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>And simple Glide expression to load an image to this ImageView just to test Glide</p>
  
  <pre><code>@Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          ImageView imageView = (ImageView)findViewById(R.id.image);
  
          Glide.with(this)
                  .load("http://you-ps.ru/uploads/posts/2013-08/1376601606_1273.png")
                  .error(R.mipmap.ic_launcher)
                  .into(imageView);
  
      }
  </code></pre>
  
  <p>However, error icon is shown.
  What kind of problem it can be? 
  I have proxy server on my network, and appropriate gradle.properties for that case.</p>
  
  <pre><code>systemProp.http.proxyHost=proxy******.ru
  systemProp.http.proxyPort=****
  </code></pre>
  
  <p>But even if i try to launch this little app outside of any proxies, it won't work for some reason.</p>
  
  <p>My build.gradle file</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 25
      buildToolsVersion "25.0.2"
      defaultConfig {
          applicationId "com.example.vbusovikov.glidetest"
          minSdkVersion 15
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
          exclude group: 'com.android.support', module: 'support-annotations'
      })
      compile 'com.android.support:appcompat-v7:25.1.1'
  
      compile 'com.github.bumptech.glide:glide:3.7.0'
  
      testCompile 'junit:junit:4.12'
  }
  </code></pre>
  
  <p>UPD. This simple app can load pictures from internet, but it cannot load pictures from my server. Some pictures of my server are being loaded fine, but others are not. I'm lost with this already</p>