</span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">() {
</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">ret</span><span class="jsdoc-syntax">=3;
</span><span class="jsdoc-var">Roo.each</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">document.styleSheets</span><span class="jsdoc-syntax">, </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">s</span><span class="jsdoc-syntax">) {
- </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">s.href.match</span><span class="jsdoc-syntax">(/css-bootstrap4/)) {
+ </span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">( </span><span class="jsdoc-var">s.href </span><span class="jsdoc-syntax">&& </span><span class="jsdoc-var">s.href.match</span><span class="jsdoc-syntax">(/css-bootstrap4/)) {
</span><span class="jsdoc-var">ret</span><span class="jsdoc-syntax">=4;
}
});