Tensorflow js conversion blocked by unsupported ops

[sorensenjs]

The char model when converted

tensorflowjs_converter --output_node_names='frac_neg/predictions/probabilities' --input_format=tf_saved_model experiments/tf_char
_cnn_local_model_dir/100000/1545431873/ experiments/tf_char_cnn_local_model_dir/100000/tfjs/

produces the following:

ValueError: Unsupported Ops in the model before optimization
DecodeRaw, ParseExample, StringSplit

[sorensenjs]

Looking at ops missing in the current tf hub based model:

ParseExample, LookupTableFindV2, RegexReplace, HashTableV2, DynamicPartition, SparseSegmentSqrtN, StringToHashBucketFast, ParallelDynamicStitch, StringJoin, LookupTableSizeV2, Unique, SparseFillEmptyRows, StringSplit