The Image Serving modifiers from IS commands are not added to the req=set request by design. However, modifiers that only affect image display work fine. Modifiers affecting size must be used in a complex asset. For example:
Scaling the browser window leads to incorrect resizing.
iPad 2 - Large eCatalog assets crash Safari on iOS.
All viewers
Watermarks, obfuscation, and locking are not supported.
Image presets are not supported.
Adding or removing viewer from the DOM using display:none CSS or by dynamically detaching it from the parent node is not supported.
HTML5 all viewers
Embedding a viewer in a table can result in incorrect sizing or placement of the viewer in non-native full-screen mode. Adobe recommends you use DIVs instead.
Parameters with explicit instance names in the code require instance names in the URL as well to be overwritten (for example, zoomView.iconfeffect=0).
Image Serving command crop is not supported.
Close button only works if the viewer is open in a child window.
IS commands modifier does not support Image Serving modifiers that affect image size.
HTML5 eCatalog
Navigating to other HTML page and then returning occasionally causes the viewer to reset back to the first page.
Page layout occasionally displays incorrectly after rotating the iOS device. Zooming into the page corrects the layout.
Internal links only to left-most page in multi-page spreads. Affects mobile devices in portrait mode.
HTML5 Mixed Media
Soundtrack play is not supported.
HTML5 Social
To render thumbnails properly in outgoing email, the serverurl modifier must have an absolute URL.
HTML5 Video
The poster image can encounter a max size error. Increase the limit setting for Image Serving Publish.
Video captions require a company rule set if the hosting HTML page is served from an external server (not a Dynamic Media server). Contact Adobe Customer Care for assistance.
Analytics tracking can report incorrect play percentage due to buffering.
On iPad or Android™ devices, a black frame shows instead of a poster image.
On iPad or Android™ devices, a black frame flashes onscreen during the loading of the viewer.
On iPad devices, black borders are shown on the side of the VideoPlayer component when the background is set to white/transparent.
On iPad, using iOS 7, the last frame of video is distorted.
On Chrome, Firefox, and Internet Explorer browsers, occasional macro blocking occurs during video seek in HLS streaming mode.
The poster image does not show in the Microsoft® Edge browser for visitors the first time.
When progressive playback is used, the poster image hides after the video loads in Internet Explorer 9.