add src attribute to holder.js-powered <img>s so that they validate

use `data:` URL of empty invalid PNG: src="data:image/png;base64,"

diff --git a/components.html b/components.html
index ceb745688ff8b14fb6a99e557728df5258a54913..d213030bbfc7e31317f634ccdbdb7c54c997d4b3 100644 (file)
--- a/components.html
+++ b/components.html
@@ -1819,22 +1819,22 @@ body { padding-bottom: 70px; }
       <div class="row">
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail" src="data:image/png;base64,">
           </a>
         </div>
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail" src="data:image/png;base64,">
           </a>
         </div>
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail" src="data:image/png;base64,">
           </a>
         </div>
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail" src="data:image/png;base64,">
           </a>
         </div>
       </div>
@@ -1856,7 +1856,7 @@ body { padding-bottom: 70px; }
       <div class="row">
         <div class="col-lg-4">
           <div class="thumbnail">
-            <img data-src="holder.js/300x200" alt="">
+            <img data-src="holder.js/300x200" alt="" src="data:image/png;base64,">
             <div class="caption">
               <h3>Thumbnail label</h3>
               <p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
@@ -1866,7 +1866,7 @@ body { padding-bottom: 70px; }
         </div>
         <div class="col-lg-4">
           <div class="thumbnail">
-            <img data-src="holder.js/300x200" alt="">
+            <img data-src="holder.js/300x200" alt="" src="data:image/png;base64,">
             <div class="caption">
               <h3>Thumbnail label</h3>
               <p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
@@ -1876,7 +1876,7 @@ body { padding-bottom: 70px; }
         </div>
         <div class="col-lg-4">
           <div class="thumbnail">
-            <img data-src="holder.js/300x200" alt="">
+            <img data-src="holder.js/300x200" alt="" src="data:image/png;base64,">
             <div class="caption">
               <h3>Thumbnail label</h3>
               <p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
@@ -2148,7 +2148,7 @@ body { padding-bottom: 70px; }
     <div class="bs-example">
       <div class="media">
         <a class="pull-left" href="#">
-          <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+          <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
         </a>
         <div class="media-body">
           <h4 class="media-heading">Media heading</h4>
@@ -2157,14 +2157,14 @@ body { padding-bottom: 70px; }
       </div>
       <div class="media">
         <a class="pull-left" href="#">
-          <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+          <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
         </a>
         <div class="media-body">
           <h4 class="media-heading">Media heading</h4>
           Cras sit amet nibh libero, in gravida nulla. Nulla vel metus scelerisque ante sollicitudin commodo. Cras purus odio, vestibulum in vulputate at, tempus viverra turpis. Fusce condimentum nunc ac nisi vulputate fringilla. Donec lacinia congue felis in faucibus.
           <div class="media">
             <a class="pull-left" href="#">
-              <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+              <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
             </a>
             <div class="media-body">
               <h4 class="media-heading">Media heading</h4>
@@ -2192,7 +2192,7 @@ body { padding-bottom: 70px; }
       <ul class="media-list">
         <li class="media">
           <a class="pull-left" href="#">
-            <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+            <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
           </a>
           <div class="media-body">
             <h4 class="media-heading">Media heading</h4>
@@ -2200,7 +2200,7 @@ body { padding-bottom: 70px; }
             <!-- Nested media object -->
             <div class="media">
               <a class="pull-left" href="#">
-                <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+                <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
               </a>
               <div class="media-body">
                 <h4 class="media-heading">Nested media heading</h4>
@@ -2208,7 +2208,7 @@ body { padding-bottom: 70px; }
                 <!-- Nested media object -->
                 <div class="media">
                   <a class="pull-left" href="#">
-                    <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+                    <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
                   </a>
                   <div class="media-body">
                     <h4 class="media-heading">Nested media heading</h4>
@@ -2220,7 +2220,7 @@ body { padding-bottom: 70px; }
             <!-- Nested media object -->
             <div class="media">
               <a class="pull-left" href="#">
-                <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+                <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
               </a>
               <div class="media-body">
                 <h4 class="media-heading">Nested media heading</h4>
@@ -2231,7 +2231,7 @@ body { padding-bottom: 70px; }
         </li>
         <li class="media">
           <a class="pull-right" href="#">
-            <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image">
+            <img class="media-object" data-src="holder.js/64x64" alt="Generic placeholder image" src="data:image/png;base64,">
           </a>
           <div class="media-body">
             <h4 class="media-heading">Media heading</h4>

diff --git a/css.html b/css.html
index 8b3cc0c50cffd6bb9302087a01ccdfee12f2adf3..d4d4c03355484584de2ab8698855fefd037605a2 100644 (file)
--- a/css.html
+++ b/css.html
@@ -2012,9 +2012,9 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
       <p>Keep in mind that Internet Explorer 8 lacks support for rounded corners.</p>
     </div>
     <div class="bs-example bs-example-images">
-      <img data-src="holder.js/140x140" class="img-rounded" alt="A generic square placeholder image with rounded corners">
-      <img data-src="holder.js/140x140" class="img-circle" alt="A generic square placeholder image where only the portion within the circle circumscribed about said square is visible">
-      <img data-src="holder.js/140x140" class="img-thumbnail" alt="A generic square placeholder image with a white border around it, making it resemble a photograph taken with an old instant camera">
+      <img data-src="holder.js/140x140" src="data:image/png;base64," class="img-rounded" alt="A generic square placeholder image with rounded corners">
+      <img data-src="holder.js/140x140" src="data:image/png;base64," class="img-circle" alt="A generic square placeholder image where only the portion within the circle circumscribed about said square is visible">
+      <img data-src="holder.js/140x140" src="data:image/png;base64," class="img-thumbnail" alt="A generic square placeholder image with a white border around it, making it resemble a photograph taken with an old instant camera">
     </div>
 {% highlight html %}
 <img src="..." alt="..." class="img-rounded">

diff --git a/javascript.html b/javascript.html
index 49f49edf06aa45d6412f29cd399acd54887d79c3..f15f5540d21d9443a7e5cbae1d134f2cf883b377 100644 (file)
--- a/javascript.html
+++ b/javascript.html
@@ -1613,13 +1613,13 @@ $('#myCollapsible').on('hidden.bs.collapse', function () {
         </ol>
         <div class="carousel-inner">
           <div class="item active">
-            <img data-src="holder.js/900x500/auto/#777:#555/text:First slide" alt="First slide">
+            <img src="data:image/png;base64," data-src="holder.js/900x500/auto/#777:#555/text:First slide" alt="First slide">
           </div>
           <div class="item">
-            <img data-src="holder.js/900x500/auto/#666:#444/text:Second slide" alt="Second slide">
+            <img src="data:image/png;base64," data-src="holder.js/900x500/auto/#666:#444/text:Second slide" alt="Second slide">
           </div>
           <div class="item">
-            <img data-src="holder.js/900x500/auto/#555:#333/text:Third slide" alt="Third slide">
+            <img src="data:image/png;base64," data-src="holder.js/900x500/auto/#555:#333/text:Third slide" alt="Third slide">
           </div>
         </div>
         <a class="left carousel-control" href="#carousel-example-generic" data-slide="prev">
@@ -1675,21 +1675,21 @@ $('#myCollapsible').on('hidden.bs.collapse', function () {
         </ol>
         <div class="carousel-inner">
           <div class="item active">
-            <img data-src="holder.js/900x500/auto/#777:#777" alt="">
+            <img data-src="holder.js/900x500/auto/#777:#777" src="data:image/png;base64," alt="">
             <div class="carousel-caption">
               <h3>First slide label</h3>
               <p>Nulla vitae elit libero, a pharetra augue mollis interdum.</p>
             </div>
           </div>
           <div class="item">
-            <img data-src="holder.js/900x500/auto/#666:#666" alt="">
+            <img data-src="holder.js/900x500/auto/#666:#666" src="data:image/png;base64," alt="">
             <div class="carousel-caption">
               <h3>Second slide label</h3>
               <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
             </div>
           </div>
           <div class="item">
-            <img data-src="holder.js/900x500/auto/#555:#5555" alt="">
+            <img data-src="holder.js/900x500/auto/#555:#5555" src="data:image/png;base64," alt="">
             <div class="carousel-caption">
               <h3>Third slide label</h3>
               <p>Praesent commodo cursus magna, vel scelerisque nisl consectetur.</p>