HTML5 video not playing only in chrome

i am using this code to play a video in a wordpress website. the code workes perfectly in all browsers but in chrome controls are disable and the video is not playing. any where else but that site the code works in chrome. changing the theme and disabling plugins did not solve the problem.i have changed the code and the format of videos several times but nothing works on that.

<video width="320" height="240" controls="controls">
<source src=" test.mp4" type="video/mp4" />;
  <source src=" test.ogv" type="video/ogg" />;
  <source src=" test.webm" type="video/webm" />;
</video>